So How Did Katy Perry And Russell Brand Celebrate Grandma's Birthday?

They took home-girl to the casino...I LIIIIIVE!!! And is Grandma's cane bejeweled out? I LIIIIIVE again!!!!!!!!!

Katy Perry and husband Russell Brand treated Katy's grandmother, Ann Hudson, to a night at Planet Hollywood Resort & Casino in Las Vegas!

Katy took to her Twitter page and tweeted:

“Happy 90th birthday grandma HUDSON! You’re the reason why!”

In related news, Katy Perry has just been confirmed as a performer at this year's GRAMMYS. As much as I adore Katy Perry, she needs some serious help in the live performance department. *fingers crossed* that she doesn't bomb!

More flix under the break....

 Grandma Hudson is decked out in her good "Sunday Clothes", I see! DIVINE!

These two are adorable!

Images: Getty Images