"I think the guests are the strongest we've had," Karina Smirnoff, 35, recently told PEOPLE about those who will compete, including Jack Osbourne, Nicole "Snooki" Polizzi, Leah Remini and Valerie Harper.
"You don't have to Google anyone," she said. "You know every single person."
Dancers have been training with their mystery partners for several weeks now, which led to early speculation as to who would be joining the show.
Craig Sjodin / ABC
Smirnoff and Burke took a moment from their training on Thursday to to help launch Pom Wonderful's new juice blend drinks at Las Vegas's Encore Beach Club. Taking a brief break was no doubt helpful to their dance partners, too, considering they're being pushed out of their comfort zones by participating on the show in the first place.
"They come into our world and they put themselves in a very vulnerable position," Smirnoff said. "We see their insecurities, their fear. They come to our world and they don't know it. I take my hat off to them."