OK- while she's not REALLY a singer, Cameron Michelle Diaz has sung and danced in her movies. (See You Tube links below.)
Born in San Diego, California - and a former model - Cameron stared in many films beginning in the 1990s. Notable film credits include "The Mask," "My Best Friend's Wedding," "There's Something About Mary," "Charlie's Angels," "My Sister's Keeper," "Vanilla Sky" and "Gangs of New York." She also was the voice of Princess Fiona in the Shrek film series. (She received Golden Globe nominations for "There's Something About Mary," "Being John Malkovich," "Vanilla Sky," and "Gangs of New York.")
Press links below for YouTube videos and enjoy!
-- "The Mask"
-- The Killers "Mr Brightside" (From "The Holiday")