"Dancing with the stars" time, now. Coming off the night like never before. They had the stars switch dance partners for the first time. And the new pairings helped scramble the leaderboard. Take a... See More
"Dancing with the stars" time, now. Coming off the night like never before. They had the stars switch dance partners for the first time. And the new pairings helped scramble the leaderboard. Take a look. It was the night of the big partner switchup. So many stars forced out of their dancing comfort Zones. This is going to be so interesting. You look like my daughter. Maks never braided my hair. Val would know the answer. ? Reporter: For Meryl Davis, it was a matter of switching chmerkovskiy brothers. She and Val owned the night. And a surprise from guest judge, Julianne hough. I would love to dance like you. Reporter: But there was no brotherly love when it came to Maks, whose jive with Danica Mckellar earned this review from Julianne. It was like this week could get past to get back with Meryl. And you had to phone it in. That was definitely not the case. But thank you. Reporter: The tensions still palpable when we spoke to the stars backstage. This is objectivity. Julianne is too young to criticize me. Sometimes being older doesn't mean you're wiser. Reporter: And back in the ballroom, more drama. ? the judges came down hard on olympian Charlie white, for his rumba with PETA. You're a beautiful dancer. But that wasn't a rumba. Reporter: But housewife nene Leakes had her best with Derek hough. And paralympian, Amy Purdy, didn't miss a beat with new partner, mark Ballas. You astonish me. You really do. Reporter: And the best news of all, there were no eliminations Monday night. Dancer beware, next week, someone is going home. Wow. Even though they had time to rehearse with the new partner, that can't be easy to get on the dance floor and switch momentum. Amy Purdy said she was incredibly nervous. To not be with Derek because Derek had just been -- marvelous. She didn't show it there. Not even for a second. I love that mark Ballas, who has been doing this for so many years, said this was his favorite week ever on the show. It was so moving to him. That was good, as well, for the dancers. Drew Carey, I loved that last night. I love what Bruno said. He said you're the sugar daddy of showbiz. He said your performance was between Elvis Presley and liberace. I'm sure drew Carey never heard those words before. He has some gold Lamme there. He doesn't look like an old man. Giving him a hard time. I know. He looks really comfortable with their new partners. In their zone alone. Having the pros, maybe not. But I think a lot of people will be watching. No question. Tune in next Monday, at 8:00, 7:00 central. That's "Dancing with the stars."
This transcript has been automatically generated and may not be 100% accurate.