"Back That Thang Up" (or the uncensored version "Back That Azz Up") is a song recorded by American hip-hop artist Juvenile featuring American hip-hop artists Mannie Fresh & Lil Wayne, being the latter's first single. It was released on June 11, 1999, as the second single from his 1998 album 400 Degreez. The song was Juvenile's biggest hit single until the release of "Slow Motion" in 2004, which peaked at number 1 on the Billboard Hot 100, surpassing Back That Azz Up which peaked at #19 on the same chart. In 2021, it was listed at No. 478 on Rolling Stone's "Top 500 Best Songs of All Time".[1]