Avril Lavigne
Avril LavigneArtist: Kelly Clarkson Song: "Breakaway" (2004) "Breakaway" is still one of Kelly Clarkson's greatest hits (it spent 20 weeks at the top of the Billboard charts). Little did you know, the song started out as just a leftover track from Avril Lavigne's debut album - a song that Clarkson initially only recorded for The Princess Diaries 2 soundtrack! After the tune resonated with fans, she made the wise decision to turn the anthem into title track on her sophomore album. [Photo via]