Anna-Catherine Hartley (born December 9, 1987), better known by her stage name Uffie /ˈʌfiː/, is an American-French electronic musician, songwriter, rapper, and fashion designer formerly signed to French electronic music record label Ed Banger Records. She has been described as a muse for French DJs, and is known for working with her labelmates and friends, such as Feadz, Mr. Oizo, and SebastiAn, as well as producer Mirwais.