Deepest Bluest (Shark's Fin) was recorded by LL Cool J for Deep Blue Sea, the 1999 shark thriller directed by Renny Harlin. Released as the soundtrack's lead single in the summer of 1999, it plays over the film's end credits and leans directly into the movie's shark-attack premise. While the film became a cult favorite for its over-the-top kills, the song lived on through the soundtrack and late-90s hip-hop nostalgia. Today it resurfaces in shark memes, throwback playlists and edits that want an instantly recognizable aquatic movie tie-in.