Yvette Marie Stevens (born March 23, 1953), better known as Chaka Khan, and frequently referred to as the "Queen of Funk", is a 10-time Grammy Award winning American singer-songwriter from Chicago, Illinois who gained fame in the 1970s as the frontwoman and focal point of the funk band Rufus. In 1964, at the age of 11, Khan formed her first musical group, the Crystalettes. While still in high school, she joined the Afro-Arts Theater, a group which toured with Motown great Mary Wells; a few years later, she adopted the African name Chaka Khan while working on the Black Panthers' breakfast program.