Katy Perry Stuns in Montreal, Invites William & Kate to Her Concert (PHOTOS)

Katy's 'Purr'fect Cleavage
Check out more pics of Katy's revealing dress!
After taking a few days off, Katy Perry returned to Canada to continue her California Dreams Tour. Debuting a few new outfits (totaling to 16 costume changes!), she hit every sugary, sweet beat during the sold-out show in Montreal.

Of course, Katy was so excited that Prince William and Kate Middleton were in Canada at the same time as her scheduled tour that she invited them to her show. Posting on her official Twitter page, Katy wrote:

“Heard Prince William & Kate are here, come to the show!!!”

Although the royal couple didn’t make it out to that particular show, we’re sure the invite is still open.

Over the weekend, Katy and Russell Brand could barely keep their hands and lips off each other while out and about in New York City. The couple, who tied the knot back in October, held hands and kissed as they strolled through West Village and took in a break for lunch and coffee.

Tags: Katy Perry