Christian Hoff, left and Travis Cloer are shown onstage at “The Rockin’ Retro Drive-In Show” at …

Christian Hoff, left and Travis Cloer are shown onstage at “The Rockin’ Retro Drive-In Show” at Westfield North County shopping mall in Escondido, Calif., on Saturday, Aug. 16, 2020. (Chris Fore)