William James Adams Jr. , known professionally as will.i.am, is an American rapper, singer, songwriter, record producer and actor. He is the frontman of the musical group Black Eyed Peas, which he formed with fellow rappers apl.de.ap and Taboo in 1995. The group, who released nine studio albums, saw their furthest mainstream success during their 2000s pop rap era with Elephunk (2003), Monkey Business (2005), The E.N.D. (2009), and The Beginning (2010). He served as lead vocalist since its formation, although for the albums, he did so alongside singer-songwriter Fergie—who joined the group in 2002 and departed after the latter.