Celebrity Taylor Swift Celebrates 25th Birthday with Beyoncé, Jay Z & Justin Timberlake: PHOTO The singer toasted her special day with a bevy of famous friends in New York City By Anya Leon Anya Leon Anya Leon is a Senior News Editor and the Parents Editor for PEOPLE. She's been at the brand for over 14 years in various roles across the Entertainment, Lifestyle and News teams. She has appeared on PEOPLE's podcast, PEOPLE Every Day, and covers everything from exclusive pregnancy news to every single Kardashian birth (11 and counting!). She resides in Northern Virginia with her family. People Editorial Guidelines Published on December 13, 2014 10:00AM EST Photo: Courtesy Taylor Swift Leave it up to Taylor Swift to throw a birthday blowout to end all birthday blowouts! After starting the celebration off while performing at the New York City Jingle Ball (where she asked the crowd to scream loudly in honor of her birthday), the singer – who turned 25 on Saturday – kept the festivities going offstage at her apartment. And thanks to her long list of famous friends, there wasn’t a blank space in the house. Swift, who was already dressed for the night in the plaid two-piece outfit she wore to the annual holiday concert, was all smiles as she arrived at her Tribeca pad, where she was joined by Jay-Z, Beyoncé, Justin Timberlake, Sam Smith, Karlie Kloss and the girl band HAIM. The music bigwigs reportedly noshed on pizza, according to the Daily Mail, donned party hats and – thankfully – snapped a shot of the epic get-together. “So this is being 25 … #WHAT #bestbirthdayEVER,” she captioned a group photo of all the partygoers on Instagram. With such a star-studded guest list – which also included Selena Gomez, Jaime King, Emma Roberts, Ansel Elgort, Kelly Osbourne, Nick Jonas and Chrissy Teigen – we can’t imagine what Swift wished for when she blew out her candles. But, hey, it’s her party and she can … shake it if she wants to. https://instagram.com/p/wjc1X3kVVv/ On Saturday, Charli XCX shared a couple of pics from the festivities and commented, “owww my thighs ache so much from dancing last night!” And Swift posted a shot on Instagram of her birthday present from pal Lena Dunham: a kitty necklace that she described as “my new most cherished possession.” https://instagram.com/p/wj0JbvDvIM/ Taylor Swift’s Changing Looks!