Girls’ Night Out Selfies

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Lauren Conrad

"I'm not sure anyone has ever had this much fun with sparklers before," Conrad — partying with BFF Hannah Skvarla — wrote when posting this Throwback Thursday Instagram pic in 2014.

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Jennifer Lopez and Jennifer Aniston

In an amazing Oscars 2015 selfie, Lopez (in Atelier Versace) was photobombed by Aniston and her fiance, Justin Theroux, whom Lopez declared her "favorite couple."

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Lady Gaga and Mariah Carey

Double diva selfie! "Merry f--king Christmas, love Mariah and Gaga," Taylor Kinney's fiancee wrote along with this snap of her and Carey during Carey's Beacon Theater NYC concert in December 2014.

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Zoe Kravitz and Lisa Bonet

"Night out with my best gal," Kravitz posted after enjoying mommy-daughter time with Bonet in 2014.

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Katy Perry

Perry's 92-year-old grandmother, Ann Hudson, stole the show when the singer brought Hudson as her date to the 2013 Smurfs 2 premiere in L.A.

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Lily Allen and Gwen Stefani

Shenanigans at the Oscars! Hanging with Mark Ronson at the Vanity Fair party following Oscars 2015, Allen was struck by her selfie partner's beauty. "Proof that Gwen Stefani is not human," Allen captioned the Instagram pic.

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Lupita Nyong'o and Rihanna

At the Miu Miu fashion show in Paris, the 12 Years a Slave Oscar winner goofed off with the "sensational" Rihanna.

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Taylor Swift

The "Style" singer threw a house party for girlfriends Gigi Hadid, Karlie Kloss, Martha Hunt, and Ashley Avignone, snapping a fashionable shot to commemorate the 2014 evening. "I didn't get the 'let's all wear black' memo," Swift joked.

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Sophia Bush

Chicago P.D.'s star helped Chicago Fire's Taylor Kinney celebrate his Valentine's Day engagement to Lady Gaga at a celebratory dinner with the Dick Wolf shows' cast and crew in February 2015.

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Jennifer Lawrence

Lawrence's pal Sarni Rogers celebrated her mega girls' night out with the Hunger Games actress at Lisa Vanderpump's PUMP with this pic. "The whole group was ecstatic because they are all fans of RHOBH," a source told Us of Lawrence's November 2014 night out. "Lisa sent over complimentary bottles of her LVP Sangria and Vodka and even signed a bottle for Jennifer's friend."

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Jessica Alba

Alba let loose with pals at Bush's L.A. show at The Wiltern in January 2015. "We had so much fun!" Alba said of dancing the night away with two girlfriends.

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Nikki Reed and Kat Graham

Reed and "super hot date" Graham got all dolled up to attend Rihanna's Diamond Ball Charity Gala in December 2014.

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Jessica Simpson

Simpson posed for a sultry selfie with her personal assistant turned BFF CaCee Cobb in 2014. "Bosom buddies," Cobb's Instagram caption read.

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Sarah Hyland

Modern Family's Hyland was all smiles with her "beautiful ladies" Malin Akerman, Michelle Trachtenberg, and Phoebe Tonkin at a pre-Oscar 2015 party in L.A.

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Kim Kardashian

Sisters' night out! During a February 2015 visit to New York City, Kardashian bonded with Khloe Kardashian, and Kendall and Kylie Jenner. The foursome hashtagged the photo in a nod to their missing sis, Kourtney. "#WeMissYouKourt," they wrote.