Faith + 1 is a Christian rock band formed by Eric Cartman in the Season Seven episode, "Christian Rock Hard", after being expelled from the boys' group, Moop. Cartman formed the band in order to win a bet he had made with Kyle Broflovski over who could get an album to go platinum first.
Faith + 1's lineup consisted of Eric Cartman on lead vocals and piano, Butters Stotch on drums, and Token Black on bass guitar. After seeing considerable initial success, they were signed by Chritian Label, Faith Records.
The group's self-titled debut album, Faith + 1, was a massive success, quickly selling over one million copies. However, as Christian rock albums are either certified gold, frankincense, or myrrh, which are the gifts given to Jesus at his birth, Cartman could technically never win his bet with Kyle. Upon learning this, Cartman furiously exclaims, "Fuck Jesus!", alienating the Christian fanbase and angering his band mates. The group disbanded shortly thereafter.
All of the songs they produced were simply covers of other songs with religious content added to them. Comically, the majority of their songs were unintentionally double ententes about loving Jesus sexually, as the result of Cartman changing words such as "Baby" and "Darling" in love songs.
American hard rock band Creed was the main inspiration for Faith + 1, being a band that achieved mainstream success for connecting with Christian audiences. The episode in itself is somewhat of a mockery of Creed, having been viewed by the public as a band that capitalized on Christianity by making "the easiest, crappiest music in the world". Faith + 1's implosion during Cartman's myrrh album ceremony could also be a reference to Creed's infamously awful performance at AllState Stadium Chicago, which served as the catalyst for the band's initial demise in 2004.