Nick Jonas' Brown Blazer

Nick Jonas goes back to his NYC hotel carrying a Dr. Pepper Diet Soda on Thursday night.

The 15-year-old singer was kind enough to pose in a few pictures with fans.

In the latest issue of Rolling Stone, Nick and Selena Gomez were outed as a couple.

A source claims that back in February, the star of Disney’s Wizards of Waverly Place wrote a song inspired by Nick.

“They were writing lyrics for the bridge, and she was saying how Nick makes her so mad when he doesn’t call her back,” the source tells E! News about the tune, titled “Head First.” “The verse was definitely written about Nick Jonas.”