Katy Perry Celebrates Birthday, Throws Cake At Fans [Video]

Katy Perry had her 27th birthday Tuesday, and celebrated by having her cake and eating it lobbing it at her fans.

The ‘California Gurls’ singer was performing at Belfast’s Odyssey Arena on Monday October 24th, the night before her birthday, when her crew surprised her at the end of her show with a birthday sing-a-long.

A blue-coiffed Perry was then presented with a cake, promptly blew out the candles and, well, you can see the rest of her rock ‘n’ roll cake-chucking antics in the video below:

In other Perry birthday news, the pop star requested that fans donate to an animal charity, rather than sending her presents for her big day.

Writing on Twitter, Perry asked people to donate to the American Society for the Prevention of Cruelty to Animals (ASPCA):

“Thanks for the sweet B-day messages! For my b-day I have set up a donation page. The voice for ANIMALS! Give if u can!”

The singer and wife of British comedian Russell Brand is currently performing in the UK on her ‘California Dreams’ tour.