On Saturday, April 23rd, 7:30 pm, a benefit concert in support of the Acton Food Pantry and Lazarus House (Lawrence) will be held at Acton Congregational Church (12 Concord Road, Acton) . Two a cappella groups will be performing, Ball in the House and Custom Blend. Tickets are $20 for adults and $15 for students, sold at the door.