"Tomorrow Comes Today" is a song from Gorillaz's self-titleddebut albumGorillaz and was their first release when issued as an EP in November 2000. A demo version of the song, "I Got Law" was included as a bonus track of the Japanese edition of 13 by Blur, Damon Albarn's other musical project. The first three songs from the EP ended up on their debut album, however, "Latin Simone" was heavily edited, and dubbed into Spanish, for the album release. The new version was sung by Ibrahim Ferrer, and renamed "Latin Simone (¿Que Pasa Contigo?)". The original version is sung by 2D and appears along with "12D3" on the later-released compilation album G Sides. The song itself was also the fourth and final single from that album, released on 25 February 2002. It peaked at number 33 on the UK Singles Chart.
Directed by Jamie Hewlett, the video for the title track consists mainly of static drawings of the Gorillaz placed against real photographs and time-lapsed video footage of London streets. Some of the drawings are animated, especially the ones featuring 2D singing. The video finishes with the four band members, and 2D's headache pills, flying across the screen during a fast-motion shot of a tunnel. Graffiti artwork by Banksy can be seen halfway through the video. 2D makes a reference to this in Rise of the Ogre, saying "At first I wanted to be a vandal like that bloke Banksy". Several times during the course of the video, an image of a red gorilla is seen. A stylised duck head, an Easter egg in early Gorillaz videos, can be found as a tattoo on the arm of Russel. It can be seen right before the camera cuts away after panning across the city streets. This was the Gorillaz' first video, which inspired them to go for a completely animated look. 2D commented: "it's amazing how young we look in this!" in Rise of the Ogre.