Taylor Swift Wishes Justin Timberlake Happy Birthday, Posts Throwback Photo With Beyonce, Jay Z

A photo posted by Taylor Swift (@taylorswift) on Jan 31, 2015 at 9:58am PST

What a crowd! Taylor Swift gave a shout out to Justin Timberlake on his 34th birthday by posting an amazing throwback photo of the "Mirrors" singer, Beyonce (wearing reindeer ears!), and Jay Z.

"Happy Birthday, @justintimberlake!" Swift captioned the Instagram pic of the foursome on Saturday, Jan. 31. "Thank you for your music, comedy, daaaahncing, songwriting, and for taking this selfie."

The frame-worthy shot appears to have been taken during Swift's 25th birthday bash last month. The "Style" songstress marked the milestone at her Tribeca apartment in NYC. Other famous pals in attendance included Sam Smith, Ansel Elgort, Karlie Kloss, Nick Jonas and his girlfriend Olivia Culpo, Kelly Osbourne, Selena Gomez, Jaime King, Chrissy Teigen, and Charli XCX.

"A bunch of Whole Foods bags and about eight bags of Japanese food [were delivered]," an insider told Us Weekly at the time, including "20 boxes of pizza." The source added that it was "a total blast."

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