Katy Perry has told people to "simmer down" over her decision to kiss a fan on stage during her California Dreams tour.

The newly-single songstress has come under fire for puckering up while performing dates in Asia. Some publications are reporting that Katy has locked lips with two audience members while in Indonesia and the Phillippines.

However, the stunning singer has taken to her Twitter page to defend her playful actions.

"Btw, I have *kissed* 1 boy, picked randomly out of the audience, on the cheek as a part of my show for all 125 tour dates. Simmer down now ," she tweeted.

Katy recently split from her husband Russell Brand. The British comedian filed papers to end their 14-month marriage at the end of December.

Katy has since continued with her touring schedule, and has been enjoying her time on stage. The 27-year-old beauty took the time out to thanks fans for their continued support on the social networking site.

"Thanks for an AMAZING FINAL CDT date Manila!" she gushed.

"Sorry to keep u waiting earlier... had to solve a security issue, but THE SHOW WENT SPLENDIDLY!."