Andreone was born and raised in San Diego, California and attended Helix High School in La Mesa.
She collaborated with other artists and writers, such as Billy Steinberg, Kevin Fisher, Rob Hyman, Eric Bazilian, Marti Frederiksen, Charlie Clouser (Nine Inch Nails), John Shanks, David Lowery (Cracker), John Lowery (Marilyn Manson), Kasia Livingston, Kay Hanley (Letters To Cleo), Michelle Lewis, and Martha Davis (The Motels).
Andreone contributed a cover version of Carole King's "I Feel the Earth Move" to the Speed 2: Cruise Control soundtrack.
In 2006, Andreone released an EP of new material entitled UNLABELED - The Demos, which contains a cover version of Beyoncé Knowles's "Deja Vu".
On September 1, 2009, she released a new full-length CD entitled Avalanche (written and produced by Andreone and Kevin Fisher).