name/singer of song

[Guest]

Hi! I'm new here but anyways! I really really need to know who sings this one song.. I saw it on the teaser for the season premiere of CSI.. but I can't remember which CSI it was.. I know they were showing a circus.. or acrobats and stuff in the preview.. and there was a male singer on a stage at what looked like a concert. The song I'm looking for was playing through the whol preview and was sung by the guy on the stage but I cannot figure out what the song was! Thankyou to anyone who can help!

 

[allmaple]

that was the seadson premier for csi las vegas. the guy on stage was jon mayer and the song he was singing was 'waiting on the world to change'