CARSTAR Auto Body Repair announced it is searching for the dirtiest cars in America as part of its annual Soaps It Up! North American Carwash event, according to Torque News.

The June 12 announcement said the company is asking people to tweet a photo of their dirty ride to @CARSTARAutoBody and to use the hash tag #SoapsItUp.

CARSTAR will then clean the cars belonging to the selected winners. CARSTAR currently has over 400 locations throughout 31 states and 10 Canadian provinces.