A huge inflatable pig, featuring the word “Obama”, is flying somewhere over the California desert.

Surprisingly, the gigantic swine is not the latest campaign advert from Hillary Clinton. It was released by Pink Floyd’s frontman Roger Waters on Sunday during his headlining set at the Coachella music festival.

Now organisers want the pig back – and are offering a $10,000 reward and four lifetime tickets for the music festival in exchange for its safe return.

As tall as a two-storey house and as wide as two school buses, the pig was released into the sky as Waters played a version of Pink Floyd’s Pigs, from the 1977 anti-capitalist album Animals.

“It wasn’t really supposed to happen that way. I don’t have the details,” Marcee Rondan, a festival spokesman said.

The pig displays the slogans “Don’t be led to the slaughter” and “Fear builds walls”. It also sports a cartoon of Uncle Sam holding two bloody cleavers.

Its belly has the word “Obama” written on it, with a checked ballot box for the US democratic hopeful.

“That’s my pig,” Waters told the crowd, as the huge swine drifted off into the night, accompanied by flames exploding from the side of the stage.

It was not clear whether the singer intended to part company with his fake pet.

The enormity of the pig has led to concerns that it might destroy anything it crashes into. But Ms Rondan speculated that “because it’s inflatable, as it loses air it becomes less and less dangerous.”

She did not know how much the blowup animal weighed, however.

It is not the first time that Pink Floyd shows have used blowup pigs. The Obama pig is “the same prototype as past pigs,” Ms Rondan said.

“People are putting search teams together to find this pig,” she said. “But it may float in the night sky, never to be seen again.”

The festival have not yet been able to contact Waters, the Pink Floyd co-founder and writer of albums such as Animals and The Dark Side of the Moon.

Anyone with information on the pig should e-mail lostpig@coachella.com.

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