This year marks the 35th anniversary for the San Francisco Gay Men's Chorus. It's been an exciting but difficult road for the group – their first performance was at a candlelight vigil for Harvey Milk on the night of his murder, they ignited a worldwide gay choral movement with their groundbreaking tour in 1981, and they remained active in the community throughout the height of the AIDS epidemic. Despite this activist past, the group never lost its ability to revel in the simple joy of music. That much will be apparent in Shine, their annual holiday production. This year sees 300 men swinging 600 pom-poms and a special guest appearance from recording artist Matt Alba. As for the setlist, Artistic Director Dr. Timothy Seelig was coy about naming the songs, but he promised favorites like "Jingle Bells," "Silent Night," and "White Christmas." He also promised some extra surprises. "Of course it would be easy to just list the songs we are singing," Seelig said. "But that wouldn't even begin to tell the whole story."