Will.i.am has criticised an airline which he claims kicked him out of a first class waiting lounge.
The rapper tweeted that he had been travelling with United Airlines.
He called the company "the worse", saying "I'm a member and I have my card to prove it. But they tell me my card is fake and kick me out the lounge #ouch".
But the airline told Newsbeat he did not meet the criteria for access to its facilities.
It added: "We are reaching out to the customer and appreciate his business."
The Voice coach also posted a picture of a red chair, adding: "It's OK, I'm making this my lounge.
"Ha ha ha, I got kick(ed) out the club ... #unitedclubsucks.
"I fly so much... a business should know who [its] customers are."
He later claimed the airline's pilot had asked for a selfie.
"I get kicked out of the @united lounge because they say I'm not a member... oh well... and then the @united pilot asks me to take a selfie," he said.