Dubbed as the “Roastmaster General,” Ross has fired shots at Charlie Sheen and Justin Bieber — he’s used the pop star’s dating life as ammunition for his act setting aside little mercy for Bieber’s ex, Selena Gomez. But, when he’s not roasting he’s probably talking about weed, drinking or jerking off in hotels. Recently he performed several shows in a county jail — luckily, plenty of guards were present. Don’t miss him at Amos’.