"Et si tu n'existais pas" (English: And if you did not exist) is a 1975 song by Joe Dassin. It is the first track of his album Joe Dassin (Le Costume blanc). The lyrics are by Pierre Delanoë and , the music is by Salvatore Cutugno and Pasquale Losito.The song was covered by Iggy Pop (in French) in 2012.