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#willpower is the fourth studio album by American recording artist and record producer, will.i.am. It was released on April 19, 2013. The album was originally titled Black Einstein and scheduled for release at the end of 2011. It was then renamed #willpower and delayed several more times. The album's first single "This Is Love" features Eva Simons, the second single "Scream & Shout" features Britney Spears, and Justin Bieber is featured on the third single "#thatPower". There is a remix of "Scream & Shout" that features Lil Wayne, Hit-Boy, Diddy and Waka Flocka Flame. Other guest appearances on the album include Afrojack, Juicy J, Chris Brown, Miley Cyrus, Skylar Grey, Nicole Scherzinger, Korean pop group 2NE1, Baby Kaely and will.i.am's The Black Eyed Peas bandmate apl.de.ap.

The album was re-released on November 26, 2013; the re-release includes the brand new single "Feelin' Myself" featuring Miley Cyrus, French Montana, Wiz Khalifa, and DJ Mustard, to replace "Let's Go" featuring Chris Brown.

During the recording of The Black Eyed Peas' sixth studio album, The Beginning, band member Fergie revealed in an interview that will.i.am was in the process of recording a new solo album, tentatively entitled Black Einstein. Just days later, will.i.am confirmed the news, and announced that the album would be released in the fourth quarter of 2011. It was announced by will.i.am in November 2011 that he had changed the title of the album from Black Einstein to #willpower. will.i.am confirmed that he collaborated with Britney Spears, Demi Lovato, Jennifer Lopez, Cheryl Cole, Nicole Scherzinger, David Guetta, Ke$ha, Alicia Keys, Swedish House Mafia, Rihanna, Shakira, LMFAO, Eva Simons, Chris Brown, Mick Jagger, Busta Rhymes, Swizz Beatz, Miley Cyrus, Justin Bieber, Avril Lavigne and Ne-Yo.

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