Songfacts®:

• This club-inspired Auto-Tune-heavy number is one of a number of songs on the album The E.N.D. that reflect the Peas' love of going out. Will.i.am told Rolling Stone: "This is the first album that represents our touring life as far as how hard we party."
• Fergie told MTV News that when the group went into the studio to record The E.N.D., she warned the others not to go too overboard with the Auto-Tune. She said: "I remember coming into the studio one day and was like, 'We're on this electro tip. It's crazy. Just please don't put Auto-Tune on every song I sing so that you can't recognize that it's me, or us." Fergie added that Will.I.Am heeded her plea and used the processor like "sprinkles." She explained: "He really did it tastefully. It's like at the end of a sentence, and when you see us live, it's a different thing."
• Will.i.am collaborated with French dance producer and DJ David Guetta on this track. The pair also worked together on "I Gotta Feeling." In return, Guetta asked Will.i.am to appear on two tracks on his album, One Love, and he agreed. "We were creating this bridge between European electronic culture and American urban culture," Guetta told Billboard magazine. "We were having so much fun in the studio, dancing like two little kids. We kept making songs, even though our albums were finished, just for the fun of it."
• The song samples Rob Base and DJ E-Z Rock's 1988 hit "It Takes Two," which itself borrows from Lyn Collins' James Brown produced 1972 single, "Think (About It)."
• When this song climbed 16-9 on the Hot 100, The E.N.D. became the first album in 20 years by a duo or group to yield five Top 10s on the survey. The previous album by a duo or group to sport a quintet of Hot 100 Top 10s was Milli Vanilli's Girl You Know It's True in 1989-90.
  BEP vocalist Fergie had already achieved the feat having sent five tracks from her solo debut, The Dutchess into the Top Ten in 2006-08.
• "Rock That Body" had a significant viral resurgence in 2025, particularly across TikTok. The song's energetic beat and catchy chorus made it a favorite for dance challenges, with users creating and sharing choreography set to the track's distinctive "I wanna rock right now" hook.