Katy Perry and Russell Brand hit Las Vegas for granny bash

 Katy Perry and Russell Brand celebrate her grandma's 90th

It's proof that Katy Perry has tamed ex-drug and sex addict Russell Brand. The newlyweds were pictured enjoying a civilised evening celebrating Katy's granny's 90th birthday on Wednesday at Planet Hollywood's Resort And Casino in Las Vegas.

'Happy 90th birthday grandma HUDSON! You're the reason why!' Katy, 26, Tweeted. Ann Hudson, who was sporting a glittering diamante cane, was delighted to have her family around on her special day.

Pop star Katy and comedian Russell, 35, then moved things on to the blackjack