The exercises the 54-year-old singer has been undertaking with Nicole, who has been the popstar's trainer for the last three years after she parted company with fitness guru Tracy Anderson, have clearly been working, reported Daily Mail.
"We're all born with an area we're insecure about and she thinks it's her thighs so we spend a lot of time moulding and sculpting. She works very hard on it," Nicole said.
Nicole, 28, said she works on 'five key areas' with the mother-of-four for one to two hours a day as well as training the dancers and back up singers who are involved in the tour performances.
"I look to tighten the back of the arms, to cinch the waist, to flatten the lower abdominals, to work on the inner and outer definition of the thighs and to raise the butt," she said.