At one point during the film, Aquaman (Jason Momoa) and Mera (Amber Heard) emerge from the ocean in slow motion, and then suddenly and inexplicably, Pitbull’s “Ocean to Ocean” begins to play. It features Pitbull rapping about the plot of the movie, but the hook of the song is a cover of Toto’s “Africa” featuring Rhea. Then, as quickly as it arrives, it disappears into the night.
Article source: https://www.cinemablend.com/news/2464034/james-wan-explains-that-pitbull-song-in-aquaman