STUDIO CITY, Calif., July 7 (UPI) -- U.S. singer Miley Cyrus' pilates instructor said critics shouldn't worry about the star's shrinking waistline because "she's healthy and she feels good."
Mari Winsor said she's been working with the 19-year-old for the past four months on an almost daily basis at her Studio City, Calif., gym, People magazine reported Friday.