The work of rapper and producer will.i.am helped make Black Eyed Peas one of the most intriguing acts in hip-hop, and later made them one of the most popular acts on the charts when the albums Elephunk (2003) and Monkey Business (2005) started ascending the charts. During 2005-2007, he also helmed tracks for Pussycat Dolls, John Legend, bandmate Fergie, the Game, Ciara, Nicole Scherzinger, and Macy Gray. His solo career...