Please Welcome to the Stage: Every Single Surprise Taylor Swift Guest

Who?! She's an American folk singer and songwriter. Joan has been recording music since 1960.
Where?! At Levi's Stadium in Santa Clara, CA.
Why?! That's the thing: we're not really sure! There's no obvious connection between Joan and Taylor, although it's possible Taylor just really looks up to her.

Who?! You know, Joey! From Friends! He's done other stuff too, to be fair.
Where?! The Staples Center in Los Angeles.
Why?! No idea. Maybe Taylor Swift is a huge Friends fan?

Who?! She's an Australian model who first broke out at Paris Fashion Week in 2011. She walked for both Marc Jacobs and Jean-Paul Gaultier, and her career has seriously taken off since!
Where?! At Taylor's show in Chicago.
Why?! Unclear. Andreja wasn't in the "Bad Blood" music video, which featured tons of models. She didn't walk in last year's Victoria's Secret Fashion Show, either. That said, maybe Tay met her through one of their mutual model friends.

Who?! It's safe to say we all know who Julia is. She's America's sweetheart!
Where?! Julia took the stage with Joan Baez in Santa Clara, CA.
Why?! We're not sure, although they've definitely met at a party before.

Who?! Chris Rock is an actor and comedian. You might remember his much-beloved TV series, Everybody Hates Chris.
Where?! Chris joined Matt LeBlanc at Taylor's LA show.
Why?! We don't know. We really don't know. They have met, though, at an SNL afterparty!

Who?! Well, it's all laid out for you. If "US Women's Soccer Team" isn't enough of a clue, we don't know what else to say. They're the World Cup champions, by the way.
Where?! Taylor's show in New Jersey.
Why?! Listen, we'll be the first to say the US Women's Soccer Team is jam-packed with incredible, inspiring, badass women. That's probably reason enough to have them on Taylor's stage.

Who?! You don't know about Serena Williams, one of the world's top athletes? The woman who holds six Wimbledon titles and has 18 Grand Slam victories under her belt? Go to your room.
Where?! Serena hopped into that epic group of ladies who took the stage during Taylor's London tour.
Why?! She's one of the top athletes in the world, OK?!

Who?! They're a singing and songwriting group from Oslo, Norway.
Where?! They crashed Taylor's show in Vancouver!
Why?! Your guess is probably just as good as ours.

Who?! Lily's a British fashion model and Victoria's Secret Angel.
Where?! Lily joined Andreja on stage in Chicago.
Why?! Lily and Taylor definitely could have met at 2014's Victoria's Secret Fashion Show. We've never really seen them casually hanging out, though.

Who?! They're an American music duo based in LA.
Where?! They might be from LA, but they joined Tay in Foxboro, MA.
Why?! It's superrandom, but Taylor's always happy to share the stage with up-and-coming artists.

Who?! They're a band that's been around for quite some time! They have six albums under their belt.
Where?! Pittsburgh, PA.
Why?! Taylor's throwing it back to her country music roots!

Who?! An indie band from Chino, CA. The group consists of the four Sierota siblings.
Where?! They joined Taylor in Philadelphia, PA.
Why?! Because Taylor's one of the "Cool Kids," duh.

Who?! It's the band that sings that SUPER catchy song "Shut Up and Dance."
Where?! They took the stage in Foxboro, MA.
Why?! Well, they do have a chart-topping single, so that's a pretty good reason. We suppose.

Who?! He's the frontman of Imagine Dragons!
Where?! He was one of Taylor's first surprise guests, joining her in Detroit.
Why?! Imagine Dragons is a pretty big deal.

Who?! Andy sings, writes, and produces songs.
Where?! He and Tay took the stage together in Chicago.
Why?! Seeing as, like, everyone knows the words to "Honey I'm Good," he seems like a good guy to have around.

Who?! Oh, only that star basketball player from the LA Lakers!
Where?! At Taylor's first show in LA.
Why?! OK, Kobe is a random guest to have, but he served a purpose: he surprised Taylor with her record-breaking banner, which is hanging in the Staples Center!

Who?! Not only is she married to Adam Levine, but she's been a Victoria's Secret Angel since 2009. She even opened the show last year!
Where?! She joined a slew of ladies in New Jersey.
Why?! Seeing as she's a VS model, we're sure she and Taylor have crossed paths a handful of times. Good enough for an invite on stage with so many other people.

Who?! Uzo is an Emmy award-winning actress, best known for playing "Crazy Eyes" on Orange Is the New Black. She also recently got cast in the live production of The Wiz.
Where?! Uzo first joined Taylor in New Jersey, but when she came back for the LA show, she actually performed a song.
Why?! We don't really know how these two know each other, but Uzo is insanely talented, so we're totally on board with this.

Who?! Ciara is a certified pop diva (obviously), and Russell Wilson is an NFL player who reps the Seattle Seahawks.
Where?! They paired up with Tay in Seattle (which makes sense).
Why?! Maybe they just happened to be there?

Who?! She's the singer of that insanely catchy single "Fight Song." Don't pretend like you don't know every word.
Where?! Rachel slayed with Tay in Philadelphia, PA.
Why?! You know, since "Fight Song" is SO great, we're on board with this.

Who?! Lisa is most well known for her role as Phoebe on Friends. You might also know her from her brilliant work on The Comeback.
Where?! At the Staples Center in LA.
Why?! "Smelly Cat" is a classic in its own right. We'll take any excuse to have it grace our ears again.

Who?! He's had tons of hit songs (which often feature him singing his own name), and until recently he was dating Jordin Sparks.
Where?! Washington DC.
Why?! This one's another mystery. Taylor and Jason practically sat next to each other at the 2014 VMAs, so there's a good chance they mingled there.

Who?! You know, one of the two Jenner sisters who are killing it on Instagram and taking over the world.
Where?! Kendall popped up at the London show.
Why?! Well, we know Taylor is good friends with Gigi Hadid, and Gigi and Kendall are pretty much inseparable. It makes sense. Sort of.

Who?! Fetty Wap sings "Trap Queen," which has become a bonafide Summer jam.
Where?! Taylor and Fetty Wap shared the stage in Seattle.
Why?! Taylor could really want to be a trap queen — or she thinks the song is about cooking actual pies. Who are we to say?

Who?! They're the British pop group responsible for that insanely catchy song "Black Magic."
Where?! Santa Clara, CA.
Why?! Until recently, Perrie Edwards was engaged to Zayn Malik, who used to be in One Direction with Harry Styles. Harry Styles dated Taylor Swift once upon a time, so . . . do with that what you will.

Who?! They're the group that slayed on X Factor USA back in 2012, and they just dropped their first full album, Reflection.
Where?! Santa Clara, CA.
Why?! Maybe it has something to do with the fact that one of the members, Camila Cabello, attended (and fangirled over) Taylor Swift's New Jersey show a month ago! Side note: now they totally hang out.

Who?! This gorgeous woman is another Victoria's Secret Angel! She definitely walked last year's VS Fashion Show.
Where?! East Rutherford, NJ.
Why?! We'd venture to say the VS connection is pretty strong.

Who?! Come on, we all know this woman from her iconic role on Law & Order: SVU.
Where?! Mariska appeared on stage in Philadelphia, PA.
Why?! Well, Mariska was definitely one of the many stars in Taylor's "Bad Blood" video. Even more importantly, Taylor named her cat after Mariska's SVU character (Olivia Benson). She's earned her keep.

Who?! The lead singer of the Dixie Chicks, of course!
Where?! The Staples Center in LA.
Why?! Given Taylor's country music background, she'd be crazy not to welcome Natalie to the stage.

Who?! Martha Hunt is a Victoria's Secret Angel. She's also a spokesperson for Free People.
Where?! At Taylor's show in Detroit, MI.
Why?! Martha has certainly earned her spot. She was at the Billboard Music Awards with Taylor, she was in the "Bad Blood" video, and she even attended Taylor's star-studded Fourth of July party.

Who?!: They're a country group composed of the Perry siblings. Their first album came out in 2010.
Where?! The band hopped on stage in Indianapolis.
Why?! Yet another example of Taylor throwing it back to her country days! We approve.

Who?! If you've been jamming out to "Can't Feel My Face," you have The Weeknd to thank.
Where?! Another surprise for the crowd in New Jersey.
Why?! With his supersexy Fifty Shades of Grey song and a new album on the horizon, The Weeknd is about to blow up. It's good that Tay nabbed him while she could.

Who?! He's a singer, songwriter, and producer, best known as the lead singer of OneRepublic.
Where?! He hopped on stage at Tay's LA show.
Why?! He did help write and produce a few songs on 1989, so that certainly earns him a little stage time with Taylor.

Who?! Sam Hunt is another sexy country music star who's fairly new to the scene and on the rise.
Where?! Sam and Taylor paired up in Chicago.
Why?! Again, this makes the most sense because of Taylor's country background. Plus, look at him.

Who?! She's an actress and singer who currently has a recurring role on the hit show Empire.
Where?! Chicago!
Why?! Serayah was in "Bad Blood," she's been out with Taylor a ton of times, and she's a confirmed member of the Tay squad, thanks to Instagram.

Who?! Leona's most widely known for her epic 2000s hit, "Bleeding Love."
Where?! In Nashville.
Why?! Leona Lewis is a bonafide powerhouse. Of course Taylor would call on her to help shut it down.

Who?! If you've bopped along to that crazy-catchy song, "Cheerleader," you've heard Omi.
Where?! Another one of Taylor's San Diego guests.
Why?! The fact that his song is so huge right now is reason enough.

Who?! Come on. It's John Legend.
Where?! LA.
Why?! Here's why: if John Legend wants to bless your stage with a beautiful song, you better let him. No reason needed.

Who?! This country music power house just made her debut this year, and she's already killing it. She's one to watch for sure.
Where?! Kelsea paired up with Taylor in Nashville.
Why?! Well, there's the whole country thing, and Taylor loves to shine the spotlight on new artists. She even tweeted about listening to Kelsea's EP!

Who?! Another Victoria's Secret model who has dominated the annual fashion show.
Where?! At Tay's show in East Rutherford, NJ.
Why?! On top of being in "Bad Blood," Lily was also a member of Taylor's red carpet squad for the Billboard Awards. They've been close pals for years now.

Who?! Daytime talk show host extraordinaire, loving wife of Portia de Rossi, avid dancer (specifically with Michelle Obama), and so much more.
Where?! During Taylor's five-night stay in LA.
Why?! Because she's Ellen DeGeneres, and she hosted the Oscars, and she's the best, and she does whatever she wants.

Who?! Oh, only the lead singer of the legendary band, Aerosmith. No big deal or anything.
Where?! In Nashville!
Why?! Because he's a rock legend and anyone who wouldn't welcome him to the stage is a damn fool.

Who?! Miranda Lambert is a massive force in the country music world, with more than five albums under her belt, and countless hit singles.

Where?! Miranda and Tay shared the stage in North Carolina

Why?! Well, there's the whole country thing, sure. But seeing as Miranda recently finalized her divorce with Blake Shelton, Taylor's whole independent girl power thing is a solid sell.

Who?! Um, only this ridiculously sexy fashion model. He was actually discovered on MySpace!
Where?! Along with Matt LeBlanc and Chris Rock in LA.
Why?! He did star in Taylor Swift's "Blank Space" video, so he's kind of a shoo-in.

Who?! Lena Dunham is the writer and star of HBO's Girls. Plus, she has an amazing book called Not That Kind of Girl.

Where?! East Rutherford, NJ.

Why?! Lena Dunham's longtime boyfriend and Fun. frontman Jack Antonoff helped Taylor produce 1989. We're not sure who Taylor met first, but the connection is clear. Lena was also in the "Bad Blood" video and has stated that she'd totally have Taylor on Girls.

Who?! You know, the punk-rock pop princess who gave us such hits as "Sk8r Boi," "Complicated," and "Girlfriend."

Where?! Avril joined Tay down in San Diego.

Why?! This one was necessary, as Avril and Taylor sort of had a feud to squash.

Who?! The Haim sisters had a smash debut with their 2013 album, Days Now Gone.

Where?! The Haim sisters joined Taylor and Nelly in St. Louis, MI.

Why?! Actually, Taylor is pretty good friends with Haim. They all vacationed in Hawaii together back in January!

Who?! Cara is a high-fashion model and also the star of John Green's Paper Towns.

Where?! Philadelphia, PA.

Why?! She was in the "Bad Blood" video, as mentioned previously, plus she dropped hilarious one-liners in a video that played during Taylor's show.

Who?! He's that Jonas brother who got really, really hot all of a sudden.

Where?! There were so many stars in East Rutherford, NJ, and Nick was one of them.

Why?! There are tons of connections between Taylor and Nick. First of all, Taylor dated his older brother Joe for a while. Joe is now dating Gigi Hadid, a very close friend of Taylor's.

Who?! If you recall, he's the *NSYNC frontman turned global pop star who brought sexy back.

Where?! Justin helped Taylor close out her run in LA.

Why?! Because he's Justin f*cking Timberlake! Plus, he and Tay had an amazing time together at the iHeartRadio Music Awards, and Justin was even at her birthday party.

Who?! Hailee's performance in True Grit earned her a best supporting actress nomination at the 2010 Oscars, she dominated in Pitch Perfect 2, and she's even got a supercatchy new jam called "I Love Myself."

Where?! Taylor's New Jersey show.

Why?! She and Tay are pretty good friends. They even baked Christmas cookies together. Plus, Hailee was in the "Bad Blood" video.

Who?! Gigi is a new It girl on the fashion scene who's steadily blowing up. She's scored plenty of campaigns, landed a few Vogue covers, and walked more runways than just Taylor's.

Where?! Detroit, MI.

Why?! Taylor and Gigi have gotten superclose over the past few months, and we're assuming they met through Taylor's bestie, Karlie Kloss (or maybe Martha Hunt). Either way, they've been spotted hanging out a ton, including at Taylor's Fourth of July party.

Who?! Karlie is a Victoria's Secret model who officially became an Angel in 2013. She's appeared in countless editorials, runway shows, and ad campaigns.

Where?! In London, with a veritable avalanche of other fierce women.

Why?! Taylor and Karlie are best friends. They conquered Big Sur together, landed a stunning Vogue cover, and even competed to see who's a better friend.

Who?! Taylor and Lorde have a beautiful friendship together. You may recall how Lorde stood up against Diplo on Tay's behalf.

Where?! Washington DC.

Why?! You might think Karlie Kloss is Taylor's BFF, but in the context of an arena world tour, Lorde makes the most sense as a special guest.

Who?! Maybe you know her from her Disney Channel past, or from her on-and-off relationship with Justin Bieber, or maybe from such hits as "Come and Get It" and "The Heart Wants What It Wants."

Where?! At Tay's final show in LA.

Why?! She was Taylor's costar in the "Bad Blood" video, but these two have a friendship that spans years, going all the way back to 2008 — that's why she's number one!