Chance The Rapper's bodyguard is facing a lawsuit after an alleged attack which took place at a W Hotel in Chicago.

The victim alleges that Star Thomas carried out the “needless, unprovoked, and violent attack.”

Travis Montgomery claims he suffered bruising to his neck and the side of his face during the alleged attack, police said.

Attorney Tim Tomasik, of Tomasik Kotin Kasserman, along with Michael Adler of AdlerLaw in Los Angeles, filed suit on behalf of Montgomery.

"This was an unprovoked, vicious attack that came without reason or warning," said Tim Tomasik. "Travis was simply a hotel guest walking through the lobby, not posing a threat or even interacting with Chance the Rapper."

Chance the Rapper is not included as a defendant on the suit.

Travis is suing Guardian Security Services, Starwood Hotels and the W Hotel's local Director of Operations.

"While Star Thomas was the person actually choking Travis and violently injuring him, the hotel and its ownership and management are responsible for allowing the incident to happen. When you're a guest at a hotel, they owe you the 'highest duty of care,' and have to take the right steps to ensure your safety. The W Hotel knew there would be hundreds of guests around their property during Lollapalooza, which attracts music fans from around the world and absolutely failed to have adequate security to protect guests in the lobby and hotel," said Tomasik.

He is seeking more than $50,000 in damages.