Perry's long printed dress featured an asymmetrical neckline and a black, silver, red and white crisscross pattern.
The pop star, who recently became the first woman in 11 years to score three No. 1 pop singles from the same album, paired the gown with long black locks slightly parted to the side, a pair of sparkly bracelets, shiny round-toe satin pumps -- and her all-black-clad new hubby, Russell Brand, who rocked a velvet blazer.
This more elegant ensemble comes a few days after Perry wore a bevy of very sexy Christmas outfits -- including ensembles evoking a scantily clad Mrs. Claus, pantless toy solider and snowman -- to the Z100 Jingle Ball in Miami.
In related news: Check out Perry's new line of colorful nail polishes for OPI, which comes out next month.