Gastr del Sol (derived from a combination of the name of a race horse (Gato del Sol) and David Grubbs' previous band Bastro) was an American, Chicago-based band, consisting for most of their career, of David Grubbs and Jim O'Rourke. Between 1993 and 1998 they released seven albums ranging in genre from post-rock (the scene they were most associated with) to musique concrète.