Justin Bieber and Chris Brown

New Music: Justin Bieber – ‘Christmas Eve’ (Written by Chris Brown)

It’s about to be one grown and sexy Christmas. Justin Bieber slows it down on “Christmas Eve,” his sensual collaboration penned by Chris Brown from his holiday album Under the Mistletoe, in stores Tuesday. “You leave some cookies out, I’ma eat ’em all,” sings the 17-year-old pop star on the slow burner. They grow up so fast.