An American actress and singer, she gained fame as the runner-up on the fifth season of "American Idol" in 2006. Her debut self-titled album was released in 2007, featuring the hit single "Over It." Transitioning into acting, she is known for her role in the TV series "Smash" and the CBS show "Scorpion." She has also appeared in films such as "The House Bunny." Her talents extend to Broadway, where she starred in "Waitress." Her career spans music, television, and stage performances.