The Nickelodeon star shared a photo of herself posing with a smiling West on Instagram on Saturday, revealing that she ran into the rapper while they were both mid-rehearsal.
"At Tour rehearsals today and Kanye was rehearsing in the stage next to us!??," Siwa captioned the snap, which shows her beaming and holding up a peace sign next to the rapper. "Seriously I've met a lot of people, and Kanye and Kim are literally 2 of the most wonderful people I’ve ever met! Thank you for being so supportive!?."
Siwa is set to head off on her D.R.E.A.M. Tour next month, but it's unclear what West was rehearsing for. Earlier this month, the former Dance Moms star spent time with West's daughter, North, for a YouTube video in which she pretended to babysit her.
"My baby girl North had her dream of life come true! She got to spend the day with @itsjojosiwa #speechless #bff #Only5Once," Kardashian West tweeted at the time.
Siwa -- who also invited North and her cousin, Penelope Disick, to her 16th birthday party -- opened up about how she and Kardashian West ended up collaborating while speaking with ET at the 2019 Kids' Choice Awards last month.
"It actually -- Kim reached out to me and I just responded to it," she said. "So, me and Kim, we made some things happen together. We're actually filming on Wednesday. Super excited about it.”