Sorry Justin Bieber
31 March 2012, 08:03
One of the big stars of Britain's Got Talent so far is telling Heart he's amazed he's now had more than half a millions hits on You-tube.
19-year-old Sam Kelly from Spixworth in Norfolk appeared in the first show singing an Adele song and playing his guitar.
The teenager got four Yes's from the show's judges - including Simon Cowell.
Sam has been speaking to Heart about his experience so far: