"I won't be doing the lift in the finals," Grey tells PEOPLE, referring to the iconic scene from the 1987 movie when costar Patrick Swayze hoisted her over his head in a flying position.
"Everyone should not expect that," says Grey, whose doctor recommended against such a risk after she underwent the first of three neck surgeries a year ago. But Grey, who turned 50 in March, is still flying high as she readies with partner Derek Hough for Dancing's two-night season 11 finale.
"It so surpassed my wildest dreams. I'm so proud I was able to say yes in the first place and that I had the courage to do it," Grey says of her experience on the show, adding that it's been one of "the hardest thing I've ever done – except maybe childbirth."
Grey and fellow finalists Kyle Massey and Bristol Palin "are just so psyched," she says. "We all feel good and we're cheering each other on so much. We all feel that we made it so far and [being in the] finals is the gravy – the cherry on top."
Dancing's two-part finale airs on ABC Monday (8 p.m. ET) and Tuesday (9 p.m. ET) on ABC.