The Ringling Bros. and Barnum & Bailey Circus may be folding after 146 years in operation, but you can catch Moonbox Productions’ loving tribute to its creator, P.T. Barnum at the Roberts Studio Theatre at the Boston Center for the Arts. Director/choreographer Rachel Bertone has crafted a dazzling, dizzying staging of BARNUM, featuring electrifying performances, beautiful vocals, and an array of circus routines that are made to look easy by the talented ensemble cast. Come follow the band and join this circus! Performances through April 30 at Roberts Studio Theatre at the Boston Center for the Arts.