Conversation so far:
What was Slash's role in Velvet Revolver?
Slash helped form Velvet Revolver and played lead guitar for the group.
Did Velvet Revolver put out any albums?
Velvet Revolver put out two albums Contraband and Libertad.
How did the Contraband do in the charts?
A commercial success, Contraband debuted at number one on the American Billboard 200 chart and was certified double platinum by the RIAA.

Question: Did the band collaborate with anyone else on the album?
Self-contained rewrite: Did Velvet Revolver collaborate with anyone else on Contraband?