Guns N' Roses credited Weber as co-writer on the song "Anything Goes" off their record-breaking debut LP "Appetite for Destruction" in 1987; and "Reckless Life" and "Move To The City" re-released on 1988's top-5 GN'R Lies. Weber also co-wrote "Ain't Going Down" from Guns N' Roses Pinball and "New Work Tune" and "The Plague" from the "Appetite for Destruction" deluxe edition. Weber claimed to have co-written "Shadow of Your Love" (appears as a b-side on various releases, released as a single in 2018) and "Back Off Bitch" (from "Use Your Illusion I"), suing the band over songwriting credits, although the case was settled and Weber did not receive songwriting credits.