Janis Joplin, Payphone, San Francisco, 1967

Janis Joplin talks on a pay phone in this black-and-white shot from 1967. 

Like Jimi Hendrix, it was her performance at Monterey Pop with Big Brother and The Holding Company that made her an international star virtually overnight. (The D.A. Pennebaker documentary  Monterey Pop captured Cass Elliot in the crowd silently mouthing, "Wow, that's really heavy," during Joplin's performance.)