#willpower is seven-time Grammy Award-winner Will.i.am's fourth studio album and features the singles "Scream and Shout (Hit-Boy Remix)" featuring Britney Spears, Hit-Boy, Waka Flocka Flame, Lil Wayne and Diddy and "#thatPOWER" featuring Justin Bieber. Other guests on the album include Chris Brown, Miley Cyrus, Skylar Grey, Juicy J, Nicole Scherzinger.