Miss Mills, who famously lost her leg in an accident in a car 14 years ago, was more than proud to show off her new leg in the American hit show, 'Dancing With The Stars.'
Also better known as the former Mr McCartney, not to mention feisty animal rights campaigner, danced the night away on the reality show with the leg that had been especially designed by a team of experts.
The silicone-finish leg, which was held on by means of a vacuum method, was not at all, in fear of falling off during the high kicking, energetic performance. She had decided to wear fairly sensible shoes when she stunned audiences with her dance, although she could have worn the false leg with a pair of high heels.
The leg had been made for Heather, 39, by an expert called Bob Watts from a rehab clinic in sleepy Dorset. An old friend and someone who has worked with Miss Mills since her accident came up with the idea of the vacuum design to help keep the leg on.
He said, "The people who have made bets on her leg falling off will be bitterly disappointed as we have created a vacuum by putting a silicone sleeve from the prosthesis, up to the middle of her thigh. The vacuum means that however hard she kicks, it will not come off. Very active amputees, like Heather, need an extremely accurate socket to eliminate as much movement as possible."
He also guaranteed that the leg was also blister free and was not going to hurt Miss Mills after too much wear, but the main feature of the leg was that it allowed Heather to do her rather impressive back flip on the show.
It is obvious that the new leg has not only pleased the judges on the show but given her renewed confidence, also giving her the chance to not let 20 million US viewers down whilst she danced with professional, Jonathan Roberts.
Whilst wearing a tiny yellow dress and a thick belt, they wowed the audience and the judges during their 2 minute jive routine.
So well done Heather and commiserations to the online gambling company who took bets as to whether it would fall off. Sorry, but it didn't.