Still riding on "Cloud Ten," Donny Osmond knocked out the "Dancing with the Stars" judges this week with his Argentine Tango, drawing a personal best score of 29, the highest score of the season. Now, we're with Donny and pro partner Kym Johnson in their Las Vegas rehearsal studio to see what they're cooking up next!

"Still living on that cloud," says Donny of their victory. But now, Donny and Kym have to lock down the Jitterbug by Monday night, and Donny says, "It's kind of bittersweet -- we love the fact that we got 29, but we really are starting over. You're just starting from ground zero."

"We take it week by week," agrees Kym. "It feels really like a competition now to me. … I think we're in a good place -- hopefully they'll take us seriously."

"It doesn't matter where we are on the leader board, I just want to be a great contender," says Donny, adding with a sly grin, "But it sure feels good to be number one."

The next episode of "Dancing with the Stars" airs Monday night on ABC.

Watch ET for more with Donny and Kym!