Artist: The Black Eyed Peas - Producer: will.i.am - Additional Producer: Ron Fair - Engineer: Dylan "3-D" Dresdow - Engineer: Tal Herzberg - Mixer: Tony Maserati - Asst. Recording Engineer: Christine Sirois - Vocals: will.i.am - Vocals: Taboo - Vocals: apl.de.ap - Vocals: Fergie - Guitar: George Pajon Jr. - Guitar: J. Curtis - Guitar: Ray Brady - Synthesizer Programming: will.i.am - Keyboards: will.i.am