The song was released as the second single from their second album, Ænima on March 19, 1997.

"H." reached number 23 on the US Mainstream Rock Tracks chart.

[3] During several tours, the lead singer of Tool, Maynard James Keenan, has referenced his son, whose middle name is H, just before performances of this song.

However, on several occasions, specifically on November 23, 1996,[4] during a show at the Electric Factory in Philadelphia, Maynard James Keenan granted some insight into another meaning of the song, saying: So, any of you ever watched those Warner Bros. cartoons?

Usually it's the angel who is kind of the one trying to give him the good advice while the devil is trying to get him to do what's bad for him.