Katy Perry Buys Drinks for Santa Barbara Crowd During Benefit Concert
Katy Perry treated her hometown to free booze at a concert this weekend -- but might've spoken too soon ...
'cause much of the crowd went runnin'.
Katy performed Saturday night at the Santa Barbara Bowl for what she dubbed 'Witness: Coming Home' -- a benefit show to help relief efforts for the wildfires and mudslides in the area earlier this year.
All ticket sales were donated, including Katy's cut.
Toward the end of the performance,
