Lee's solo career began as a featured vocalist on songs by David Hodges and Big Dismal. Lee provided guest vocals on Seether's 2004 single "Broken", which reached number twenty on Billboard Hot 100. She then collaborated with Korn in 2007 on an acoustic rendition of "Freak on a Leash", which reached number 89 on Billboard Hot 100. Lee has also appeared on three tribute albums: Nightmare Revisited (2008), Muppets: The Green Album (2011) and We Walk the Line: A Celebration of the Music of Johnny Cash (2012).
