(Srsly, what was with that sniffling??)
Less clothes, please! LOLz!
Maybe he just didn't want to make his girlfriend Olivia Culpo jealous, since he knows what that's like! Miz Culpo talked on the red carpet about how happy she was her beau wrote the song about her!
But even fully clothed we still can't get enough of Nick, and we're sure you won't be able to either (above)!