American Idol Contestants' Greatest Hits

Carrie Underwood, "Before He Cheats"

Who knew cute country girl Carrie Underwood would transform into a chart-topping bombshell beauty? When "Before He Cheats" comes on the car radio, you can't help but turn it up way too loud, roll down all the windows and belt out the words at the top of your lungs...giving dirty looks to every man who looks in your direction. Yes, even you, Grandpa. This song is dedicated to all the cheating men out there, and these days, the list seems to be getting longer and longer. But take one look at Carrie's fine fiancé (and massive diamond ring), and it's obvious that she's the one who got the last laugh.