Justin and Kesha are teaming up to do a song together!!

This just in -- Justin Bieber has been hard at work recording his next CD, Believe and sources close to the album reveal that the CD will feature a track written by Ke$ha and it'll be sung by her and Justin together! Cool!

Justin has also been in the studio with Timbaland, Lil Twist and Cody Simpson. We can't wait to hear this CD!