GARDEN GROVE

The Knudsen Brothers, an a capella group, will perform in concert Friday to raise funds for the Garden Grove Police Memorial. The brothers will sing holiday tunes, big band swing and rock ‘n’ roll favorites at the 7:30 p.m. event at Garden Grove High School’s Don Wash Auditorium, 11271 Stanford Ave. Tickets are $20. Information: (714) 741-5710.