Katy Perry electrifies F1 party with hot performance

American pop siren Katy Perry kicked off the post-race celebrations with an electrifying start to her performance at the Padang on Sunday night.

The perky 27-year-old singer kept the race theme going by appearing on stage atop a prop race car with a racer's helmet.

Donning a cute black-and-yellow mini-dress with a black-and-white checkered collar and Converse sneakers, she opened her set with the song Hot N Cold.

And the full house - some of whom had showed up as early as 5pm to secure a good spot at the Padang to watch her performance - were blown away, screaming and waving their hands in the air as she launched into the insidiously catchy Teenage Dream.