«What’s Luv?» is a song by American rapper Fat Joe, released as the second single from his fourth studio album Jealous Ones Still Envy (J.O.S.E.)(2001). The song features additional vocals from singer Ashanti, and also from fellow American rapper Ja Rule on the album version on the song. The single peaked at #4 in the UK and at #2 on the Billboard Hot 100, staying on the chart for twenty weeks. It was Ashanti’s second top ten single, Fat Joe’s first and Ja Rule’s seventh. The single helped make Ashanti the first female artist to simultaneously occupy the top two positions on the Hot 100. The song also reached #1 on the Rap Songs chart and has since sold over 4,500,000 copies.

The beat samples the 2Pac song «Niggaz Nature», and the song’s chorus interpolates the Tina Turner song «What’s Love Got to Do with It«.

The song is also featured in the 2002 movie Juwanna Mann.

The video was filmed in Fordham University.