AC/DC launched a free pop-up at Hard Rock Cafe on Pier 39 in San Francisco. Fans were able to see stage props, grab photos, and buy merchandise before the band rocks Levi's Stadium, according to Riff Magazine. About 2,000 fans showed up Monday night for the RSVP-only preview, the event promoter reported, according to Riff Magazine. Tour merchandise fills the shelves — collectibles, too, like Young-inspired devil horns and stickers. Robin Wilson, 57, from San Francisco, has tracked the group since age 13 when she lived in Sacramento, according to Riff Magazine.