Lady Gaga to duet with Usher

Usher has revealed he will be doing a duet with Gaga

Lady Gaga's famous fan Usher has unveiled he will be doing a duet with his heroine.

The R&B musician tweeted, ""Yo!..I'm gonna do a record with Lady GaGa that's gonna shock the world!! I just thought of it...Major URIV."
He later added, ""You gotta think outside of the box, you know. She killin' em over here!!".

Usher, who turns 32 on Thursday, will start his OMG tour in the UK in January 2011.