'Dancing With the Stars': Kirstie Alley spills, Kendra Wilkinson takes the table and more memorable moments

The Lord of the Dance himself made an appearance on "Dancing With the Stars" when he sat in as a guest judge for Len Goodman. Goodman reportedly had an "impossible schedule," and Michael Flatley was happy to take his spot. Flatley later returned to "DWTS" with a troupe of male dancers to perform on the show.