Released in 2009 on The Black Eyed Peas' album The E.N.D., "Out Of My Head" stands as a defining track of the group's electro-funk era. Featuring the iconic vocal hook from will.i.am, the song blends high-energy electronic production with a catchy, danceable rhythm that became a staple of the mid-2000s pop landscape. The recording exemplifies the band's signature style, combining hip-hop elements with polished pop sensibilities to create a sound that dominated radio charts and club playlists globally. As a key component of their discography during this period, the track highlights the group's ability to craft anthems that resonate across diverse audiences, cementing their status as one of the most influential acts of the late 2000s.