"I Do" is a song by American artist Lisa Loeb. It was released in October 1997 as the lead single from her second album Firecracker. The song was her second most successful single in the U.S. to date, behind "Stay (I Missed You)" which peaked at number 17, while it reached number-one in Canada.
On the surface, the song seems to be about "the realization that a person isn't right for you, that the relationship has gone bad". However, the real intention of the song is quite different according to the liner notes for The Very Best of Lisa Loeb: "We were almost finished recording the album, Firecracker, and the record company told us that we still needed a single. I decided to write a song that sounded like a song about a relationship but was actually about the record company not 'hearing' a single on the record already. You can hear it in the lyrics, 'You can't hear it, but I do.' The song ended up being an expression of strength and power even when someone's not treating you right."
In the music video, directed by Phil Harder, it shows scenes of Loeb in black and white singing on an upside-down microphone and also lies down on the feather floor (like in the album's cover) then in the singing studio. It even features paintings of her as well as the lyrics in some scenes (during Pop-up Video, the words would pop up in the same font as the words in the drawings, and the "I will" parts have the percentages).