"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 Claude Lemesle, the music is by Salvatore Cutugno and Pasquale Losito.
The song was covered by Iggy Pop (in French) in 2012.
7" promo single CBS 3907 (1975, France) 7" single CBS 4112, CBS C5 8122 (1976) or