Can't-Miss Celebrity Pics!

James Marsden came face to face with himself on Thursday, signing a giant poster featuring his alluring eyes at Los Angeles Confidential's party to commemorate its men's issue. In other fun moments, Taylor Swift showed skin in her latest performance, Katie Holmes bonded with Camila Alves, and Amanda Seyfried worked up a sweat with her adorable best friend. Keep reading to see what else your favorite celebrities have been up to this week!

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Camila Alves and Katie Holmes linked up at the Power of Pink event benefiting cancer prevention at the House of Blues in West Hollywood, CA, on Thursday.

Getty | Lester Cohen

Gwen Stefani and her No Doubt bandmates — Tony Kanal, Tom Dumont, and Adrian Young — hung out with musicians Gabrial McNair and Stephen Bradley at the City of Hope Spirit of Life Gala in West Hollywood, CA, on Thursday. The group also treated guests to a performance.

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Taylor Swift embraced her sexy side while performing on Jimmy Kimmel Live! in LA on Thursday.

Getty | Jeff Golden

T.I. was all smiles at iHeartRadio's party for his new album, Paperwork, in LA on Thursday.

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Jake Gyllenhaal got animated at the Good Morning America studio in NYC on Friday.

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Heidi Klum walked hand in hand with her boyfriend, Vito Schnabel, in Paris on Thursday.

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Following his casual date with Minka Kelly, Chris Evans popped up at a press conference for the Mission Hills World Celebrity Pro-Am golf tournament in Haikou City, China, on Friday.

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Amanda Seyfried took her dog for a run in LA on Thursday.

Getty | David Livingston

Elle Fanning struck a pose at the premiere of Low Down in LA on Thursday.

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Gerard Butler went for a walk in LA on Thursday.

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Just a couple weeks after the 10-year anniversary of Desperate Housewives, Teri Hatcher glowed at the International Medical Corps's annual award dinner in Beverly Hills, CA, on Thursday.

Getty | Jason Merritt

Newlyweds Ashlee Simpson and Evan Ross got cute at photographer Brian Bowen Smith's Wildlife show in West Hollywood, CA, on Thursday.

Getty | Michael Buckner

Jamie Foxx made Rumer Willis laugh at an event for the Samsung Galaxy Note 4 in LA on Thursday.

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On Friday, Nicole Kidman's long hair was front and center at a press conference for the Mission Hills World Celebrity Pro-Am golf tournament in Haikou City, China.

Getty | David M. Benett

Lindsay Lohan attended a performance of Memphis the Musical in London on Thursday.

Getty | Frazer Harrison

Pink performed with Linda Perry at the Power of Pink event benefiting cancer prevention at the House of Blues in West Hollywood, CA, on Thursday.

Getty | Paras Griffin

Ne-Yo smiled in the spotlight at his performance in Atlanta on Thursday.

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David Beckham soaked up the sun in Malibu, CA, on Thursday.

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Matt Damon filled up his gas tank in LA on Thursday.

Getty | Raymond Hall

Kendall Jenner multitasked in NYC on Wednesday.

Getty | Rommel Demano

On Wednesday, Jon Hamm lit up with a smile as Jennifer Westfeldt gave him an adoring look at the opening night of The Fortress of Solitude in NYC.

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Reese Witherspoon had a look her Legally Blonde character, Elle Woods, might envy when she chatted on the phone in Beverly Hills, CA, on Thursday.

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On Thursday, Taylor Swift prepped for her LA performance on Jimmy Kimmel Live.

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Joe Jonas grabbed a coffee with a pal in LA on Wednesday.

Getty | Andrew Chin

Jennifer Lopez showed off her physique on stage at We Day in Vancouver, Canada, on Wednesday.

Getty | Amanda Edwards

Animal advocates Nikki Reed, Milla Jovovich, and Kaley Cuoco teamed up at the ASPCA Compassion Awards in LA on Wednesday.

Getty | John Sciulli

Pregnancy twins Molly Sims and Vanessa Lachey caught up at the launch event for the Restoration Hardware store in West Hollywood, CA, on Thursday.

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Lena Dunham sported green hair while promoting her new book, Not That Kind of Girl, on CTV's talk show The Social in Canada on Thursday.

Getty | Tristan Fewings

Sam Smith held on tight to his trophies after his winning night at the MOBO Awards in London on Wednesday.

Getty | Astrid Stawiarz

Susan Sarandon got into the groove with artist Okello Sam at the Hope North Gala press conference in NYC on Wednesday.

Getty | Cindy Ord

Alec Baldwin's hands were full with his wife Hilaria Baldwin's accessories and coat on the ABT Gala red carpet in NYC on Wednesday.

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Charlie Hunnam took to the LA streets in a motorcycle while filming an episode of Sons of Anarchy on Wednesday.

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Seth Rogen hit the beach while filming scenes for Zeroville in Malibu, CA, on Wednesday.

Getty | Cindy Ord

Olivia Munn wore a black feathered frock to the American Ballet Theatre Opening Night Gala in NYC on Wednesday.

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Selena Gomez was the host with the most at the We Day Vancouver event in Canada on Wednesday.

Getty | Jeff Vespa

Reese Witherspoon and Dakota Johnson brought star power to the CFDA/Vogue Fashion Fund event in LA on Tuesday.

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Orlando Bloom got animated at We Day Vancouver in Canada on Wednesday.

Getty | Michael Stewart

On Monday, the hilarious ladies of POPSUGAR's Seriously Distracted brought to you by fruitwater® — Morgan Grace Jarrett, Celeste Ballard, and Laura Grey — hit the red carpet with DJ Harley Viera-Newton and our CEO, Brian Sugar, at the show's launch party at 1OAK in NYC.

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Sarah Jessica Parker filmed scenes for All Roads Lead to Rome in Italy on Tuesday.

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Nobel Peace Prize winner Malala Yousafzai spoke at the Forbes Under 30 Summit at the Convention Center in Philadelphia on Tuesday.

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Nick Jonas may have made fans jealous of his girlfriend, Olivia Culpo, when he showed off his moves on stage at We Day Vancouver in Canada on Wednesday.

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Sarah Hyland pulled out all the fashion stops for her appearance on Good Morning America in NYC on Tuesday.

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Taylor Swift made a speedy entrance into a studio in LA on Wednesday.

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Liv Tyler didn't let the rain dampen her happiness in NYC on Wednesday.

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Secretary of State John Kerry took a sweet selfie with a young fan in Berlin on Wednesday.

Getty | Brad Barket

Jennifer Hudson struck a pose at the Turn It Up For Change Ball in NYC on Tuesday.

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Kylie Minogue performed on a bed in the shape of lips in Prague on Tuesday.

Getty | Rick Kern

Neil Patrick Harris couldn't stop smiling around his fans at a signing of his new book, Neil Patrick Harris: Choose Your Own Autobiography, in Austin, TX, on Tuesday.

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Kourtney Kardashian's baby bump was front and center in LA on Wednesday.

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Dad-to-be Hayden Christensen stopped by a home improvement store in LA on Wednesday.

Getty | Jason LaVeris

Joseph Gordon-Levitt embraced Fall with a plaid shirt at the premiere of White Bird in a Blizzard in LA on Tuesday.

Getty | Alessio Botticelli

Rosario Dawson smiled from ear to ear in NYC on Tuesday.

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Catherine Zeta-Jones filmed Dad's Army in Bridlington, England, on Tuesday.

Getty | Robin Marchant

Eddie Redmayne and Felicity Jones linked up for a screening of The Theory of Everything in NYC on Tuesday.

Getty | Rommel Demano

Katie Holmes made a stylish appearance at the Skin Cancer Foundation Gala in NYC on Tuesday.

Getty | Tim P. Whitby

On Sunday, Brad Pitt and Shia LaBeouf showed up to the London photocall for Fury.

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Lea Michele and Chord Overstreet rocked out on the LA set of Glee on Monday.

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Jennifer Garner stepped out in LA with no signs of Monday blues.

Getty | Astrid Stawiarz

On Monday, Chrissy Teigen promoted the launch of Apple Pay in NYC.

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Naomi Watts went incognito during her NYC outing on Monday.

Getty | Dave J Hogan

Daniel Radcliffe and Juno Temple stepped out at the London premiere of Horns on Monday.

Getty | Elisabetta A. Villa

Josh Hutcherson gave a thumbs-up on Sunday night at the Escobar: Paradise Lost premiere in Rome.

Getty | Marc Piasecki

Adam Levine stepped out in Paris on Monday.

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Prince Harry got into the competitive spirit with a group of schoolchildren at a Monday morning rugby game in Manchester, UK.

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Kim Kardashian took a phone call during her Monday outing in LA.

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Nicky Hilton sported a SpongeBob SquarePants sweater in NYC on Monday.

Getty | Dimitrios Kambouris

Andrew Garfield, Joshua Jackson, and Taylor Kitsch were all smiles while hanging out together at the GQ Gentlemen's Ball in NYC on Wednesday.