"Thinking of You (I Drive Myself Crazy)" (titled "I Drive Myself Crazy" in the United States), is the seventh single released in the German market and the fourth from American boy band NSYNC's self-titled debut album. The track was also featured on the group's seasonal European album, The Winter Album. The song made its first appearance on the American and British versions of the band's self-titled debut album. The single did not perform as well on the charts, selling less than 150,000 copies. The song is notable as being one of the few songs where someone other than Justin Timberlake and JC Chasez sang lead vocals—Chris Kirkpatrick sings the first verse in the U.S. version, while in the European version, Chasez sang Kirkpatrick's part.
The video, directed by Tim Story, shows members of the band in an asylum. The viewer gets to see each man's torment as he remembers the girl who put him there. Each member came up with his own storyline. A flashback shows Kirkpatrick ignoring his girlfriend as he talks on the cell phone, so she gets up and leaves. He sees visions of his girlfriend walking past him. Timberlake's flashback shows him trying to give a necklace to a girl, but she returns it and leaves and embraces another guy. Chasez sees the girl who cheated on him on TV, on a show reminiscent of The Jerry Springer Show. Lance Bass reminisces to a scene where he is plucking the petals off a flower. His girlfriend sidles up to him, pulls a few petals off, but then leaves him. Joey Fatone is with his girlfriend, when another girl walks by and kisses him. His girlfriend slaps him and then leaves. In the asylum, Fatone continually slaps himself in the face with a flyswatter. The scenes in the asylum gradually get more frenetic, with their normal expressions changing to crazed expressions, Chasez attacking the TV and being restrained, Bass ripping up flowers and Fatone running around in a Superman costume. At the end the five are released, and the girls are shown being brought to the asylum instead, as the group run off to freedom. The video debuted on TRL April 1, 1999. The version of the video featured on 'N the Mix is adjusted to feature the American version of the song, which is included on the American version of *NSYNC.