Sir Paul McCartney has urged California Governor Arnold Schwarzenegger to ban the French delicacy foie gras.
Sir Paul described foie gras as 'inhumane'
The former Beatle appealed to Mr Schwarzenegger in a letter to make California the first state to ban the pate made from geese and duck livers.
Other stars, including Martin Sheen, Kim Basinger and Chrissie Hynde, also urged him to approve a bill to outlaw the sale and production of foie gras
Foie Gras is made by force-feeding the birds to expand their livers.
Sir Paul was asked to write the letter by animal rights group Viva!-USA.
He said: "As you probably know, the public has clearly demonstrated that it supports a ban on this inhumane practice.
"There is clearly nothing humane about mechanically inducing disease in a bird by forcing a pipe down its throat and making it consume such an abnormal quantity of food that its liver expands many times its normal size."
Last month, California's state legislature approved a bill that would outlaw the sale and production of foie gras.
The bill is now sitting on Mr Schwarzenegger's desk awaiting his assent.
Sir Paul added: "I feel sure that your natural feelings of compassion will encourage you to sign this basic humane bill into law."
In a separate letter, celebrities including Casey Affleck, Ally Sheedy and Christina Applegate, also urged him to enact the bill.
"It is wrong to subject animals to this kind of cruelty to produce a luxury food item," they said.