The vocalist for nu-metal group Silly Goose was arrested after playing an impromptu show at a gas station in the Loop, two days after the band performed at Lollapalooza.

Vocalist Jackson Foster, 23, was arrested late Saturday and charged with criminal trespass to property, Chicago police said.

A crowd were gathered at a BP gas station, at 50 W. Ida B. Wells Drive about 10:50 p.m. when police were called for a “large disturbance,” according to police reports obtained by the Sun-Times.

“Several people were surrounding a van with a band on top playing music at an extremely high volume,” the report said.

The crowd was “partying and mosh-pitting” in the parking lot and blocking off the sidewalk, police said.

Responding officers showed their emergency lights and played a message stating “no

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