"I Don't Care" is a song by American rock band Fall Out Boy and the lead single from the group's fourth studio album Folie à Deux in 2008.

[2] It is its album's best known song, being certified two-times platinum by the Recording Industry Association of America (RIAA), denoting shipments of two million units, with over 500,000 sales in its first four months alone.

2 lead single, "This Ain't a Scene, It's an Arms Race", of the band's previous 2007 album Infinity on High.

'"[9] "I Don't Care" has been described as "disco rockabilly", and contains a repeating blues riff throughout the song; Stump's vocal performance on the track has been compared to John Lee Hooker.

Guns N' Roses alum Gilby Clarke opens the video by greeting the band members as they enter the green room of a French-language talk show.

Near the end of the video, the band members peel off their masks to reveal their hidden identities: Andy Hurley turns out to be Mark Hoppus, Patrick Stump is Pharrell Williams, Joe Trohman is Gabe Saporta, and Pete Wentz is Spencer Pratt.

Meanwhile, a hustling woman celebrity shown earlier in the video pulls off her mask and shows herself to be Pete in a dress.

When asked about his view on the video, Wentz replied: It's a series of vignettes, and in the end, the joke is: Everyone in the world who is famous is just a WWE character.

[11]Bassist Pete Wentz posted a blog expressing dissatisfaction about the product placement in the edited iTunes music video that was not approved by the band: "The version of the video that we worked on night after night is not the version that aired, yet somehow a cut full of glorious camera-phone shots did [...] It doesn't make any sense to us.

Lyrics written by bassist/backing vocalist Pete Wentz; music composed by Fall Out Boy and Norman Greenbaum.