Organizers of a major California music festival are offering a $10,000 reward and four festival tickets for life in exchange for ex-Pink Floyd frontman Roger Waters' two-story inflatable pig, which was lost on Sunday night.

Waters' signature pig was seen floating away during his closing set at the three-day Coachella Valley Arts and Music Festival, held in the desert east of Los Angeles.

The giant flying pig, part of Pink Floyd's stage show since their 1977 album "Animals" featuring the song "Pigs on the Wing," broke free from its tethers above the Coachella crowd and drifted off.

It's not the first time Waters has lost his flying pig. Back in 1977, it floated away on the second day of a photo shoot at the Battersea Power Station in London and was later recovered and used for an album cover.

Waters was a member of British rock band between 1965 and 1985. He and the band continued to use the pig as a stage prop even after he quit, and at Coachella Waters played classic Pink Floyd songs including "Mother," "Shine On You Crazy Diamond," "Have a Cigar" and "Dark Side of the Moon."

Coachella was named one of the top three festivals in the country by music magazine Billboard. Last year, the festival attracted more than 186,000 music and art lovers, and grossed $16.2 million, according to the magazine.

Anyone with information on the lost pig, should email lostpig@coachella.com.