The track was featured on GNR's 1987 smash debut, "Appetite For Destruction." "Really cool, intimate show at @SantosPartyHaus," tweeted the guitarist. "Awesome crowd. Nice to be on a small stage like that. It's been awhile! Good Xs!"

Slash played the event on the eve of the release of his third solo album, "World On Fire." This week, Slash will promote the project and mark the Guitar Center's 50th anniversary with a series of three concerts in Hollywood's most legendary clubs.