Justin Bieber: Elvis Duran Studio Stop!

Justin Bieber pops by the Elvis Duran Radio Show in New York City on Thursday morning (June 21).

The 18-year-old musician just dropped the latest single from his Believe album, “All Around The World,” featuring Ludacris.

“That’s gonna be another smash, trust me,” Ludacris shared with MTV. “He’s grown up, he’s an extremely focused artist. I love working with him, and when you see an artist from where he’s started to where he’s at now and where he wants to go, you just really see his vision and his dream. As soon as they brought me the record, I instantly fell in love with it.”

HAVE YOU BOUGHT Believe yet?

10+ pics inside…