''Alone,'' Heart

It would require great hubris, or complete ignorance of Idol history, for a contestant to cover the one song that's indelibly linked to the success of the most popular winner ever. And yet that's exactly what season 6's Gina Glocksen and season 7's Ramiele Malubay did in selecting ''Alone,'' the soaring Heart number that catapulted Carrie Underwood from reality show hopeful to musical superstar. Hey, maybe for an encore, Gina or Ramiele could rip the mic out of Aretha's hands midway through a rendition of ''Respect''?

Click here to watch Carrie Underwood's version.