Rihanna's Million Dollar Shape - Audrina Patridge on Heidi Montag Surgery

Rihanna (pictured) spent a whopping $2,300-a-day on staying in shape - the equivalent of $840,000-a-year, it has been claimed. According to reports, the sexy Umbrella star pays a personal trainer $1,500 per day to have her on call.And she shells out $800-a-day for a private chef. "I need a trainer to motivate me," the 22-year-old Bahamian-born singer has said in the past. "I don't find it much fun working out on my own."

Rihanna's cook, Chef Ameera, told a US magazine: "She loves chicken curry and Bajan chicken soup."