Live Music Friday and Saturday Nights, Karaoke Wednesday nights and Trivia, with prizes, Thursday nights. For more than 20 years, The Blue Light has been a favorite place to assemble on Union Street in San Francisco. Welcoming and warm, The Blue Light’s atmosphere is inviting for each locals and visitors to historic Cow Hollow. Having provided a place to both celebrate and drown sorrows via the booms and busts of the final twenty years, The Blue Light certainly qualifies as a Union Street institution. The Quakes, as they’re known domestically, have played in San Jose since 1994. The A’s have played 51 seasons in Oakland and won the World Series in 1972, 1973, 1974, and 1989.