A fan claims to have received more than just a handshake when he was invited onstage at a recent Snoop Dogg concert.

Richard Monroe, 24, alleges that he was beaten by bodyguards, stagehands and even the Dogg himself at a gig in Seattle on Saturday.

"They just beat me, stomping me, and beat me with a microphone," he said yesterday.

Video footage of the incident shows Monroe placing his hand on the Dogg's shoulder during a performance of 'Gin and Juice.' He is then knocked down and beaten by bodyguards and other unidentified people. The tape doesn't clearly show whether Dogg was involved in the attack.

Monroe added: "They took my diamond earrings off my ear, my jewellery off my fingers, they took my wallet and my cell phone."

Snoop Dogg publicist Meredith O'Sullivan said: "Any person who jumps onstage at a concert has to be interpreted as a security threat and an immediate risk to both the performers onstage as well as the fans in the audience. Once a breach of security has been made, authorities are forced to take the proper measures to ensure safety."