Known for co-writing songs such as California Gurls, Teenage Dream, and Last Friday Night (T.G.I.F.), all hits by Katy Perry.
Her acting career landed her roles in films such as August Rush, as well as CSI: NY, American Dreams, and other TV shows.
She collaborated with numerous artists, including Britney Spears, Cher, Ellie Goulding, and Adam Lambert.
She started singing when she was four years old and by age seven was receiving classical piano training. She joined the Seattle Girls Choir Prime Voci when she was 12.
She grew up in a musical family.