Jackie Tohn appeared on American Idol a while back - making it into the "Top 36" round. She's also an actress who has appeared in "The Nanny," "The Sopranos," "It's Always Sunny in Philidephia," and a few feature films. She recently appeared in an episode ("One Night of Sin") of the new TNT series "Memphis Beat." Jackie played a country singer named Delilah Boswell. She sings a duet with Dwight Hendricks (Jason Lee) at the end of the show.
Jackies albums are available on iTunes, but you can listen to some of her songs for free on her MySpace page.