Chevalier Theatre welcomes the Grammy Award-winning group Boy George and Culture Club for their first Medford appearance. The 1980s pop sensations from the U.K. are best known for their top-t0 singles “Karma Chameleon,” “Do You Really Want to Hurt Me,” Church of the Poison Mind,” and “Miss Me Blind.” Tickets are $39 to $125 through the Chevalier Theatre website/Ticketmaster. Tickets also may be purchased, free of online ordering fees, at the Chevalier Theatre Box Office, which is open on Fridays and Saturdays from noon to 6 p.m., as well as two hours before every Chevalier Theatre show.