premise: Richard Fortus has recorded zero studio albums with Guns N' Roses.
hypothesis: Richard Fortus . He is best known as a member of the hard rock band Guns N ' Roses , with whom he has been a member since 2002 , and with whom he has recorded one studio album . Fortus has also collaborated extensively with The Psychedelic Furs frontman Richard Butler and fellow Guns N ' Roses bandmate Frank Ferrer . Slash (musician) . He is best known as the lead guitarist of the American rock band Guns N ' Roses , with whom he achieved worldwide success in the late 1980s and early 1990s .