"Dancing with the Stars" is down to the wire with only four celebrities left dancing. ET's Mary Hart attended the show with friend Marie Osmond, who spoke with the contestants after their performances.

"I joke about it but it really was your fault," Donny Osmond tells his sister when she mentions the mistakes he made in the first dance. Donny says he's determined to make it into the top three like Marie did. "That's my main motivation. Put me in the finals so she doesn't throw it in my face for the rest of my life," he jokes with his sister.

Kelly Osbourne said she made up part of her rumba dance because she forgot the steps she rehearsed. "I did everything I wanted to do and more."

For more with Donny, Kelly, Mya and Joanna Krupa, watch the video and see who goes home on Tuesday night's results "DWTS" show, airing at 9 p.m. on ABC.