Janis Joplin debuts as rock vocalist in San Francisco 50 years ago today (June 10 1966)

(Friday, June 10, 1966)Janis Joplin made her debut as a rock vocalist today, appearing with Big Brother and the Holding Company at the Avalon Ballroom in San Francisco and quickly gaining attention on the city’s burgeoning music scene for her powerful and gravelly blues-belter vocals and flamboyant sartorial style.