American Idol

Idols' Dream Duets

See which superstar vocalists Syesha Mercado, David Archuleta and the rest of the top 10 would love to sing with

Carly Smithson & Heart

"Two of my favorite bands of all time are Lynyrd Skynyrd and Heart," Smithson says. "I listen to anybody that's good – great singers, great melodies, powerful songs ... I love soul and soulful voices, but I've never gotten into the whole pop thing."