Producers suggest that Dancing with the Stars contestants use spray-on tan or full body foundation to make their body glow. Contestants who felt fat go in for the spray-on tan, makeup etc come out felling slim and beautiful. Six-pack abs, defined cheekbones and sculpted arms appeared almost instantly. Each 10-week season, the cast goes through more than six gallons of spray-tan liquid, or juice as it is known in the industry.