Trying to find a song from a commerical I LOVED! HELP?

Like a long, long time ago their was this commercial an it had these guys (one of them was a *****) sitting around singing like a jam session an the song was like "Beaver Viagra" or somethin an it was AWESOME an I wanted to see if it was a real song or a song just made for the commercial cause I wanted to get sheet music an see if I could record it myself. It was a AWESOME song!