Don’t know - we had it on mute ‘cuz DH was doing his own GH routine from his Beatles’ songbook. *cringe*
I just checked. The song is Slither by Velvet Revolver (from 2004 their album Contraband).
Here is the commercial.
http://www.youtube.com/watch?v=-ILs__bqfOQ
Sounded like Alice in Chains, though.