"Again" is a song by American rock musician Lenny Kravitz, being the only new song from his first Greatest Hits album, released in 2000. Written, arranged and produced by himself, "Again" was initially set to be on his sixth studio album, however, Kravitz found out that the song didn't fit the tone of the album, releasing it as the lead-single from the compilation on September 14, 2000 through Virgin Records. The mid-tempo rock ballad finds Kravitz wondering if he will ever see his former lover again and if they will reunite once more.