"Girls" is a song recorded by American singer Jennifer Lopez for her eighth studio album, A.K.A. (2014). It features a guest rap from American rapper Tyga. The song was written and produced by the song's producer Dijon "DJ Mustard" McFarlane, with additional writing from Asia Bryant, and Lopez. Cory Rooney, Trevor Muzzy, and Bryant provided vocal production for the song. A solo version of "Girls" was released on January 27, 2014, as the first promotional single from A.K.A..

On January 20, 2014, American record producer DJ Mustard messaged Lopez on Twitter stating that he had "some bangers waiting for her". The following day, singer Asia Bryant revealed on Instagram that she had worked with Lopez in the studio. "Girls" was initially released online as a buzz single on January 22, 2014, making its premiere on SoundCloud. On January 27, 2014, the song was made available for purchase as a digital download in the United States. An official remix of the song featuring rapper Tyga was released online on March 1, 2014. "Girls" is included on the Japanese and Target edition of Lopez's eighth studio album, A.K.A..

"Girls" was written by Lopez and Bryant, with additional writing from DJ Mustard, who also handled production. The song runs for a duration of three minutes and fifty-eight seconds (3:58). "Girls" is a mid-tempo hip hop and R&B song that features a "laid-back" and "trunk-rattling" beat, in which Lopez declares "At the end of the night, girls just wanna have fun".Rap-Up described "Girls" as a "ladies anthem" while Vibe called it a "club banger". Jon Reyes of The Boombox regarded the song as having DJ Mustard's signature "ratchet" sound.ETonline's Jackie Willis compared the song's lyrics to Beyoncé's "Single Ladies (Put a Ring On It)".

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