The Hopkinton Center for the Arts presents Ball in the House on Friday, Feb. 14, from 8-10 p.m. This Boston-based a cappella group has toured the world performing R&B, soul and pop tunes and has opened for music legends including Lionel Richie, Gladys Knight and the Jonas Brothers. Tickets are $35 in advance and $40 at the door. For more information, visit hopartscenter.org/events.