Hey, I found the answer. It is by Melanie Horsnell, the singer of Forever Tuesday. Apparently the song was made specifically for the commercial. You can view the answer here: http://ca.answers.yahoo.com/answers2/frontend.php/question?qid=20080129210314AAFup58
Hi there. I don't know, but something tells me the singer is Nellie McKay. The song just reminds me so much of Clonie . I don't know. I'll keep checking.