American Idol Contestants' Greatest Hits

Clay Aiken, "Invisible"

While we love Kris Allen's song Live Like We're Dying, we have to give this last spot to Clay Aiken and his 2003 single "Invisible." Why? Well aside from his voice, he lands on this list because everyone has a guilty pleasure song and with lyrics like "Whatcha doin tonight/I wish I could be a fly on your wall" and "If I was invisible/Then I could just watch you in your room" (not at all creepy), this song is one large serving of pop goodness.