Comedian Margaret Cho, reality star Mike "The Situation" Sorrentino and actor-singer David Hasselhoff tied for last place with 15 points each.
Judges' scores are combined with viewer votes to determine which celebrity is eliminated each week. The first contestant of the new season will be dismissed during Tuesday's show.
Other contestants in the hit ABC show's 11th season are actress Florence Henderson; athletes Rick Fox and Kurt Warner; reality star Audrina Patridge; singer Michael Bolton; and political daughter Bristol Palin.