"Luv" is a song recorded by American singer-songwriter Janet Jackson, it was released as the third single from her tenth studio album, Discipline (2008). Written by Rodney "Darkchild" Jerkins, Dernst "D'Mile" Emile, Tasleema Yasin, and LaShawn Daniels, production was handled by Darkchild and D'Mile. Described as a "feel-good" clap-and-bounce track, "Luv" is an electro and contemporary R&B song, with Jackson relating a car crash to falling in love. It was released to urban radio on February 11, 2008 as the album's third U.S. single. The song received generally positive feedback from music critics, who agreed that "Luv" resembles her early hits and highlighted it as one the album's best tracks. "Luv" had limited chart success, managing to reach number 34 on the US Hot R&B/Hip-Hop Songs.

While working on Discipline, Janet enlisted Rodney "Darkchild" Jerkins to work on some songs, including the lead single "Feedback". They had never worked before, but when they got together, "it was great", Janet said. She continued, "There's a connection there between the two of us, for sure. He feels it; he's mentioned it to me. [...] He just got me. Either someone is gonna get you or they're not. They all did, all the producers that I worked with on this project. But Rodney really got me, he understood me. It's like having a lost brother or cousin; he really understands me. There's a very good chemistry."

After "Rock with U" lacked to gain success on the charts, "Luv" was eventually released as the third single from "Discipline", being released on Urban radio in the U.S., on February 18, 2008. The song performed very modestly on the charts, reaching number thirty-four on the Billboard Hot R&B/Hip-Hop Songs chart in mid-March 2008, making it Jackson's forty-third U.S. R&B top forty hit. However, the song failed to chart on the Billboard Hot 100. Jackson performed the song on the Rock Witchu Tour.

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