In May 1991, the band embarked on the two-and-a-half-year-long Use Your Illusion Tour. The following September, Guns N' Roses released the long-awaited albums "Use Your Illusion I" and "Use Your Illusion II", which debuted at No. 2 and No. 1, respectively, on the U.S. chart, a feat not achieved by any other group. Izzy Stradlin abruptly left the band in November; he was replaced by Gilby Clarke of Candy and Kill for Thrills. Slash finished Use Your Illusion Tour with Guns N' Roses on July 17, 1993. In November of that year, the band released ""The Spaghetti Incident?"", a cover album of mostly punk songs, which proved less successful than its predecessors. Slash then wrote several songs for what would have become the follow-up album to the "Use Your Illusion" twins. Axl Rose and Duff, however, rejected the material.