"One Love" is a song recorded by American entertainer Jennifer Lopez for her seventh studio album, Love? (2011). The R&B song was written by Lopez, Anesha Birchett, Antea Shelton and Emile "D'Mile" Dernst II, the song's producer. "One Love" was initially written and presented to Lopez by A-Plus (Birchett and Shelton) and D'Mile to record, however, upon hearing the demo of the song, she was not pleased with its verses. Liking the chorus and idea of the song, Lopez wrote new verses to the song with the song's original writers.

"One Love" received generally positive acclaim from music critics, who cited it as a stand-out track on Love?. Critics made note of the song's indirect manner, which according to them contains references to Lopez's ex-boyfriends and husbands, such as Sean Combs and Ben Affleck. Following the release of Love?, it was revealed that Lopez's first husband, Ojani Noa, intended to bring her to court over the song, claiming that it contained lyrics about him without his prior knowledge – violating agreements made between the two following their divorce. Despite this, it has been noted that Noa is not referenced in the song and the lawsuit never transpired.

"One Love" is a R&B song, with a length of three minutes and fifty-four seconds (3:54). It was written by Lopez, along with A-Plus (Anesha Birchett and Antea Shelton) and the song's producer Emile "D'Mile" Dernst II. A-Plus (Birchett and Shelton) and D'Mile wrote and presented the song to Lopez, who loved the idea of it, but thought the track to be "very generic". In response, she asked: "Why don't we make it more 'me'?". Lopez then sat with them and wrote new verses for the song, going through every major relationship she had, asking the question: "is there one love?". Lopez described the song as being about "if we can ever have one true soul mate". She recorded her vocals for the song with Kuk Harrell at Record Plant Recording Studios, with additional vocal production from Josh Gudwin, Jim Annunziato and Birchett. John Kercy was responsible for Lopez's vocal editing on "One Love", which was later mixed by Mike "Handz" Donaldson at Chalice Recording Studios.

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