Some of the biggest stars in music hit the stage for Z100’s Jingle Ball in NYC last weekend. We’re talking Justin Bieber, One Direction, Taylor Swift, The Wanted… yeah, you get the idea.

Before and after performing in front of thousands of fans, many of these big names hung backstage at the Pop Tarts Artists' Lounge. They chatted it up with DJ JJ and ate plenty of Pop Tarts at the toasting bar. (Um, where can we get one of those?)

Check out the gallery to see all the backstage action!

Ne-Yo has been a busy guy since his 2006 debut with the album In My Own Words. Just six years later, he’s back with his fifth studio album.

To celebrate the release of R.E.D. (not to be confused with Taylor Swift’s new album), Ne-Yo performed special live versions of five tracks exclusively for Walmart Soundcheck, including the singles “Jealous” and “Let Me Love You.”

Find more after the jump!