James Kennedy deejayed to a packed crowd in Milwaukee over the weekend … simply days after he was arrested on costs of home violence.

New video obtained by TMZ reveals the “Vanderpump Guidelines” alum on stage at The Rave Eagles Membership Saturday … with followers exhibiting up in droves, seemingly unfazed by James’ arrest.

Take a look at the clip … the group’s dancing alongside as JK spun a high-energy set — with James having the time of his life and grooving onstage.

We broke the story … James was arrested earlier this week for misdemeanor domestic violence after cops say he got into an argument with a woman — whose name has not been released — and allegedly grabbed her.

As we reported … according to a Burbank Police daily arrest log, a police officer made contact with James and the woman inside a residence Tuesday night. Inside, cops say the woman claimed her boyfriend picked her up and slammed her to the ground.

James’ girlfriend, Ally Lewber launched an announcement yesterday letting her followers know she’s doing alright within the aftermath of James’ arrest … whereas asking for privateness as she navigates this troublesome time.

Kennedy launched his personal assertion via his legal professionals … who say they’re investigating the allegations towards him — including they’re hopeful the L.A. metropolis legal professional decides to not press formal costs.