Legendary guitarist Slash (GUNS N' ROSES, VELVET REVOLVER) has filmed a cameo for actor Charlie Sheen's new TV sitcom "Anger Management". Slash writes on Twitter: "Charlie's working with a great bunch of people of there."Sheen, a neighbor and personal friend of Slash's who called himself a "Rock Star From Mars" when he underwent a public meltdown amid his firing from the CBS show "Two And A Half Men", spoke at Slash's Hollywood Walk Of Fame induction ceremony in July. He said, "It's quite fitting that Slash is getting a star on the very street Axl Rose will one day be sleeping on." He added, "This star is going to be stepped on more than the coke we did in the '80s." In an interview with Australia's long-running rock station Triple M during his tour with the Soundwave rock festival in March 2011, Slash spoke about the troubles Sheen was facing at the time. "I love Charlie," Slash smiled. "Charlie is probably the most rock 'n' roll character in entertainment today. All things considered, he's been having a little bit of a hard time recently with all the bad press and everything. But he's been managing to get away with what he's been doing on that show and get a raise over the last more than ten years. I think that's pretty cool," he laughed.