Katy Perry Sparkles at Gambling Night in West Hollywood

Katy Perry

Michael Simon/Startraks

01/25/2013 AT 6:50 PM ET

Katy Perry gambled the night away at The London West Hollywood hotel on Thursday evening – but it was all in good fun.

The pop star, 28, wearing a form fitting black Cavalli dress with sparkly purple accents – joked with fellow guests and table dealers on the rooftop as she played her way through several games of Blackjack and craps.

“I created the Popchips bag and I wanted [my dress] to fit with the bag,” she told PEOPLE as she celebrated the launch of her new flavor: Katy’s Kettle Corn. “That’s kind of what I do! I always want to add more sparkles to everything I do.”
– Melody Chiu


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