Tucson photographers show how they captured rock 'n' roll history in a pop-up exhibit that's one of several events supporting Who Shot Rock 'n' Roll, opening Saturday, Oct. 22, at the Tucson Museum of Art. Tucson Shot Rock and Roll opens with a reception from 6 to 11 p.m., Saturday, Oct. 8, as part of 2nd Saturdays Downtown. DJ Carl Hanni provides the music. Free. The exhibit continues through Saturday, Oct. 29. Hours are 4 to 10 p.m., Thursday through Saturday; and by appointment. Calendars featuring the photos are sold to benefit Tucson Artists and Musicians Healthcare Alliance. Visit tucsonshotrock.com for more information.