Mark Nadler

When they handed out talent, this guy must have lingered at the door. This month, the actor/singer/pianist/comedian/cabaret wunderkind celebrates his 50th birthday with a farrago he rightfully calls “Crazy.” Will he play his George Gershwin fantasias? And will he tap his high-top glitter sneakers? Or perhaps the better question: What won’t he do to entertain the rollicking crowds?

Thu., Dec. 1, 7 p.m.; Thu., Dec. 8, 7 p.m.; Sun., Dec. 11, 1 p.m.; Sun., Dec. 18, 1 p.m., 2011