Police were called after a member of staff was attacked during a Preston gig.
Officers were called to the Continental pub on South Meadow Lane, Preston, last night during a performance by veteran ska music collective Ska Faces.
A police spokesman said that officers were called after a disturbance in which a member of the pub's staff had been attacked.
When the officer arrived she found a "very large" man behaving aggressively.
The man was sprayed with PAVA spray and arrested.