William James Adams Jr., known professionally as Will.i.am (born March 15th, 1975- ) is an American rapper, singer, songwriter, record producer and occasional actor. He is the founding member of The Black Eyed Peas, and has produced for a number of artists including Michael Jackson, Justin Bieber, Lady Gaga and Justin Timberlake just to name a few
Will served as a mentor for the Top 7 telecast of Season 20 of American Idol.