Selena Gomez and Taylor Swift Post the Cutest Instagrams After Performing "Good For You" Together

Taylor Swift's concerts are full of surprise special guests (and famous attendees), but her five dates at Los Angeles's Staples Center have been even more star-studded than usual. On her last night performing at the sold-out venue, Taylor brought out best friend Selena Gomez to perform her new song "Good For You" live for the first time ever. The pair, in amazing matching outfits and thigh-high boots, danced with shirtless men to the sexy tune and strutted down the runway to loud cheers from the audience.

After the performance, Taylor shared a snap of the pair on stage, captioning the photo simply: "Sisterhood." Selena took to Instagram to profess her long-lasting friendship with Taylor, saying: "After nearly 8 years of friendship, I just can't wait to tell our kids we ACTUALLY got to perform in front of thousands of insanely beautiful people together." Keep scrolling to see the photos Taylor and Selena shared and a few videos of their performance, then check out who brought sexy back with Taylor at the show and take a look at Selena's sexiest selfie to date.