Fresh from the current first season of TV's "Smash," Megan Hilty steps forward to take on Ain't Misbehavin', the Tony Award-winning musical revue named for the Fats Waller standard. The odds that Hilty would ever be cast in an actual production of the show — featuring the songs and composers of the Harlem Renaissance — are slim to none, making her pick perfect for Miscast, the annual MCC Theater benefit concert that puts performers in roles they would never play. Watch Hilty sing “Mean to Me,” the Fred Ahlert and Roy Turk jazz standard.