They’re probably still scrubbing resin off the walls at Bill Graham Civic Auditorium after a smoky 420 set from Pittsburgh rapper Wiz Khalifa, who made a 420 stop at the Bill Graham Civic Center. Still riding the success of his 2011 debut album Rolling Papers, it was the perfect match for the holiday.

Photos by SF Station photographer Mark Portillo.

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• Tag: 4/20, Photos, Rolling Papers, Wiz Khalifa