Krystal Marie Peterson (née Harris; November 7, 1981) is an American former singer-songwriter and pianist known for her 2001 single "Supergirl!"
The album also features the song "Love Is a Beautiful Thing", which was later used in the film Legally Blonde and appeared on its soundtrack.
In 2002, Harris appeared on Disney's The Country Bears soundtrack with the song "The Kid in You" and made a cameo in the movie itself.
Additionally, she provided the singing voice for Velma at the end of the direct to DVD movie Scooby-Doo!
In 2002, Harris played an art student in the Paramount TV movie called Save the Last Dance, based on the film of the same name.