A man was caught on CCTV ripping off his shirt before fighting bare-chested with two nightclub doorman as his pal and brother joined in.
Kieran Nicholls was filmed outside the Hype Bar in Market Place, Cleethorpes on May 1, last year as the night erupted into violence.
Along with brother Kyle Nicholls and friend Josh Burns, all three admitted affray in the incident which injured the venue's two doormen and the bar manager, a court heard.
Prosecuting, Megan Rhys when Burns arrived with Kyle Nicholls, his shirt was ripped and covered in blood. He was barred entry by the doormen, the Grimbsy Telegraph reported.