AC/DC will take the stage at Levi's Stadium in Santa Clara Wednesday night. Crews have been preparing the stadium for fans and band members, who are now in their 70s. Watch NBC Bay Area News free wherever you are WATCH HERE WATCH HEREWhile fans gear up for the concert, pop-up events are being hosted in the Bay Area. The Hard Rock Cafe at Fisherman's Wharf in San Francisco is hosting a special pop-up store, providing fans with tour items and memorabilia that cannot be found anywhere else.