Out of print in the U.S. As the former frontwoman of the Chicago, Illinois, funk band Rufus in the seventies, Chaka Khan is widely known as the Queen Of Funk and sold an estimate 70 million records worldwide. CK is the seventh studio album for Khan and contains contributions from a.o. Stevie Wonder, Miles Davis, Marcus Miller, Dave Grusin and Bobby McFerrin. The biggest hit singles from CK are the Latin-flavored "It's My Party" (written by Womack & Womack) and "Baby Me". CK also contains the first collaboration with Prince since she covered his "I Feel For You" in 1984. The track "Eternity" was written by Prince and "Sticky Wicked" was written and partly performed by His Purple Badness.