"Thinking of You (I Drive Myself Crazy)" (titled "I Drive Myself Crazy" in the United States), is a song by American boy band NSYNC. It was released on February 22, 1999 as the seventh single in the German market and the fourth single from their self-titled debut album in the US. The track was also featured on the group's seasonal European album, The Winter Album. 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 US version, while Chasez sang Kirkpatrick's part in the European version. It was heard once in the PEN15 episode, "First Day".