Green Day required proof of vaccination for entry to a surprise concert at Cain's Ballroom in Tulsa, Oklahoma on July 20, 2021. The band announced the show on July 19, 2021, describing it as a warm-up for their Hella Mega Tour with Weezer and Fall Out Boy.
The concert was vaccinated-only due to the rise of the Delta variant and the indoor venue setting. Attendees needed to provide ID and proof of vaccination, with the final dose administered no later than July 6, 2021. Tickets sold out within 30 minutes, and admission was denied without proper documentation.
This move was notable in Oklahoma, where only 39.5% of the population was fully vaccinated at the time, and state lawmakers were actively opposing vaccine mandates and "vaccine passports." AI-generated answer