Helio Castroneves (with Chelsie Hightower)
Previous outing: The Brazilian IndyCar champ, 37, was the Season 5 winner with Julianne Hough.
Crunch time: Castroneves has been burning the candle on both ends, finishing his race season last weekend. "It's been a crazy few weeks. But now, instead of the racing shoes, it's the dancing shoes."
First dance: Fox trot