Will.i.am, Jimmy Fallon Become Teenage Girls for Hilarious “Ew!” Music Video: [VIDEO]Will.i.am, Jimmy Fallon Become Teenage Girls for Hilarious “Ew!” Music Video: [VIDEO]The "Feelin' Myself" singer teamed up with Jimmy Fallon for a totally amazing "Ew!" segment on The Tonight Show last night.Teddy McKayTeddy McKay