As you may know, Comedy Central has been using Ozzy Osbourne’s “Crazy Train” in their marketing for Charlie Sheen’s upcoming Roast. And last week, it was revealed that Slash would be in attendance for the Roast, which was already filmed and will air on Sunday, September 18. Now, though, we get a sneak peak at what the former Guns N’ Roses guitarist actually did at the Roast.

The former Two And A Half Men star entered the stage while sitting on a train with Slash shredding on a guitar. We’ve pretty much seen Slash everywhere, from performing at the Super Bowl halftime show to being featured in a Disney animation. And now we’ve seen him hanging out with a loopy Charlie Sheen on a train. This appearance shouldn’t come as too much of a surprise, since the two are also long time friends. You can watch Sheen’s entrance for yourself up top.