Avril Lavigne has devastated a pizzeria by revealing that her favourite pizza is no longer one of theirs.

Although the moody singer used to be a great fan of a certain pizza served by La Pizzeria in Napanee, Ontario, her vegetarianism has made her alter her preferences. This comes as a blow to the establishment, whose menus brag "the home of Avril Lavigne's favourite pizza".

She is reported as saying: "It was green olives, pepperoni and mushrooms but I don't eat mushrooms or pepperoni anymore. Mushrooms aren't good for you and meat's not too great for you ... I eat healthier than that now."

However, while that pizza is no longer Avril's cup of tea, she has good memories of La Pizzeria. She explained: "I think it was in Rolling Stone magazine, they asked what I missed about Napanee and I said La Pizzeria and now, like, their business has like skyrocketed.

"They have a fan book in La Pizzeria and a bunch of fans go there from like all over the world and they all write me letters and every once in a while the owners give me the book."