ET was backstage at "Dancing with the Stars" as three couples tied for first place on Monday night. The contestants tell ET about their performances and Denise Richards tells us about her special visit with Charlie Sheen's twin boys.

"I went to see his babies -- my dad and I, last results show," Denise says. "They're amazing. Bob looks very similar to Sammy when she was an infant. It was very sweet."

Watch the video to hear the celebs and their professional partners talk about their performances and their strategies as the competition continues -- and Steve-O and Steve Wozniak open about continuing to perform while being injured.