Chaka Khan

Yvette Marie Stevens (born March 23, 1953), better known by her stage name Chaka Khan, is an American singer whose career has spanned four decades, beginning in the 1970s as the frontwoman and focal point of the funk band Rufus. Widely known as the Queen of Funk, Khan has won ten Grammys and has sold an estimated 70 million records worldwide.

For Disney, she voiced herself in the Disney Channel animated series Phineas and Ferb in the episode "Summer Belongs to You!".