All Out is a 1973 album by Grin. Where the first two Grin albums had featured the band as trio augmented by overdubs, singalong choirs or even orchestras, the recent addition of Nils' brother Tom as second guitarist made the band a solid quartet. The only additional performer is blues-shouter Kathi McDonald, who contributes excellent backing vocals on several songs [most notably "Heart on Fire" and "She Ain't Right"].