According to the Kansas City Star, the music icon was staying at the Four Seasons while in St. Louis for her "Witness" tour, which stopped at Scottrade Center on Sunday. Rosenblum and Dudney were partying with an estimated 300 guests when Perry and some of her crew crashed the reception around 11:30 p.m.
Guest Amy Prada told the Huffington Post that she was on the dance floor when a big group of people, who were not in wedding attire, ran in.
“I thought maybe it was a dance mob or something," Prada says. "Then behind all of them, I saw Katy Perry and she went straight to the dance floor with her dance crew. I was shocked!”
Prada grabbed Rosenblum and “kind of threw her into the middle of the circle," according to the Kansas City Star. "She was like: ‘What’s going on? This is crazy!’”
Apparently, Perry is a very polite wedding crasher: Photographer Ray Prop told the HuffPost that Perry introduced herself to Rosenblum and Dudney and asked, "Do you mind if we crash your wedding?"
Obviously, when Katy Perry asks to crash your wedding, you say yes. And great photo ops and plenty of dancing ensued. The Kansas City Star reports that Perry and her crew joined in the fun for about ten minutes, though a couple of dancers stuck around to dance longer.
Take a look at all the joyous shenanigans right here. Let's just say your wedding pictures are probably not going to be able to compete with these.