The same day that Ashton Kutcher beat CNN in their much-hyped Twitter race to reach one million followers, a new challenger has come to the surface — The Hills’ Spencer Pratt.

“Ashton had a huge head start, but I believe in my Twitter family,” Pratt, who currently has less than 200,000 followers on the social networking site, tells

“From the moment Ashton accepts my challenge, assuming he’s man enough to do so, whoever adds the most new followers in 30 days wins.”

What are the stakes for their May 17 deadline? “If I win, Ashton and Demi (Moore, his wife) have to wash my car,” he says. If he loses, Pratt adds that “Heidi (Montag) and I will clean their house.”