02/14/2012 09:37 am ET Updated Feb 14, 2012

'Celebrity Apprentice' Sneak Peek: Clay Aiken and Penn Jillette Sell Sandwiches For Charity (VIDEO)

The celebrities are uniting under Donald Trump for charity once again on the new season of "The Celebrity Apprentice." The men are pitted against women, all of whom are vying for The Donald's approval as he has them competing in various challenges. Up first in the season premiere? Selling lunch.

In the exclusive clip above, Penn Jillette is tasked with driving customers into the restaurant, but it's up to the folks inside to make the sale.

"Carnie trash is what I really am," Jillette says. "That's why my voice is like this, from years of carnie talking." Once he gets the people inside, it's "American Idol" veteran Clay Aiken who brings home the bacon.

Watch the clip above for a sneak preview of Aiken and Jillette's teamwork.

"The Celebrity Apprentice" premieres Sun., Feb. 19 at 9 p.m. EST on NBC