Maksim Chmerkovskiy is not only facing the wrath of the Swifties, but also Jan Ravnik and Jen Affleck now! During an episode of wife Peta Murgatroyd's podcast, The Penthouse with Peta, last week, the former pro slammed Taylor Swift's backup dancer! Maks said Jan "has absolutely no business being a pro on Dancing with the Stars" because he has "zero foundation technique, quality, understanding of the partnership." According to the mirrorball champion, the guy can't even do a basic foxtrot! Yeesh! He continued: "He had no idea what foxtrot is supposed to look like.