He's always been more famous for being Britney Spears' boyfriend, but now he's about to release his first single.
"I've wanted to do this ever since I was a young lad," Justin told our showbiz programme Newsround Lite.
"It's just about a life-long dream and I figured if I don't do it now when am I going to do it?"
Inspired by urban music
Justin described how his new single, Like I Love You, was inspired by heroes like Marvin Gaye and Stevie Wonder.
"I really didn't try to make an effort to make urban music but I am a product of my inspirations. And growing up in a generation where you've got so much music to listen to, it's very inspiring," he said.
The boyband member has sometimes been compared to Michael Jackson, and he told Newsround Lite that he thought the singer has been an inspiration for loads of artists - including Britney and Nelly.