DRESS CAMPAIGN FOR PRESIDENT OBAMA

Frock the vote: Katy Perry makes an election ad-dress

Perry creative ... singer turns herself into a human ballot slip

ANYBODY left wondering who Katy Perry plans to vote for in the American presidential election next month?

The singer pledged her support for Barack Obama in typically wacky fashion at a rally in Las Vegas last night.

Katy, 28, took to the stage in a tight white rubber dress printed up like an election ballot slip.

The words "PRESIDENT OF THE UNITED STATES" were printed across her boobs - and she made a big black mark next to the names of Obama and his Vice President Joe Biden.

Frock the vote ... Katy begged fans to 'vote early' for the president

The brunette begged the 13,000-strong crowd to "vote early" between performances of Teenage Dream, Firework and a rendition of Obama's favourite song, Al Green's Let's Stay Together.

But when the president took to the stage himself - he confessed Katy isn't his favourite member of the Perry family.

Obama told the crowd: "I've got to know Katy and she's a wonderful young lady. And I can tell that part of it is because of her outstanding grandma Anne, a 50-year resident of Nevada.

"The only thing I have to say is Anne got some lipstick on me when she kissed me. Fortunately somebody wiped it off before Michelle saw it."

Sin City ... 13,000 people flocked to see the singer and Obama at the Las Vegas rally

Obama will hope Katy's cat cry helps his chances of re-election when America goes to the polls on November 6.

His campaign has taken a battering in recent weeks thanks to Republican rival Mitt Romney's strong showing in the televised election debates.

It's not the first time the singer has lent her support to Obama's campaign.

- Katy's new boyfriend, John Mayer, has been given the seal of approval from her parents.

He splashed out on birthday presents for their daughter and even picked up the £3k bar bill from her party in LA last weekend.

He has now invited Katy to meet his family in Connecticut for Thanksgiving.

She might want to pick out another dress for that.