“California Gurls” are taking Las Vegas by storm.

Katy Perry invited Kim Kardashian’s daughter North West on stage during her Las Vegas performance Saturday to participate in a “walk off competition.”

The Skims founder shared numerous Instagram-Story videos of North, who also asked Perry if her friends could join, dancing and jumping across the stage to various beats and tunes.

While North, 9, was on stage, the “Teenage Dream” singer admitted she was a “huge fan” of North and her mom’s shared TikTok account where they can be seen lip-syncing to Perry’s biggest hits.

Perry also asked North, who was dressed in all black, what she wanted to be when she grew up, to which she responded, “Everything.”

“Katy Perry called North & her friends on stage!!!!” Kim, 42, captioned one video, before adding, “Dreams do come true.”

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Although Kourtney Kardashian’s 10-year-old daughter, Penelope, joined the group in Las Vegas, it appears she decided to sit out of the competition.

After careful consideration, Perry named North, 9, and another participant winners of the “walk off.”

The “Last Friday Night” pop star, 38, announced she would reward them with pizza pies before they were escorted backstage.

Kim had announced to her fans earlier in the day that she decided to “surprise” her daughter and her friends with a quick trip to Vegas for the “Play” residency and joked she was “more excited” than anyone aboard her private jet.

During the flight, the “Kardashians” star treated the group to “Kim Air Mocktails” that were named after some of Perry’s biggest hits, as well as cotton candy and other sweet treats.

The trip comes just weeks after Kim surprised her son Saint and his friends with a trip to England to watch Arsenal’s soccer matches.