Abbey and her professional dance partner Aljaz Skorjanec was in a celebratory mood after topping the leaderboard with their dance on the weekend.
Abbey and former Coronation Street actress Natalie Gumede received the joint best scores of the semi-final, with both winning 78 points and each getting a maximum 40 out of 40 for their first dance.
During the results show last night, viewers saw Casualty star Patrick Robinson and his partner Anya Garnis dance for survival against Natalie and her professional dance partner Artem Chigvintsev.
After the dance-off, Patrick learned that he would be leaving the competition, meaning the show will have the first all-female final in its 11 year history.
Patrick, who was the last man standing in the competition, graciously bowed out of the show and had nothing but praise for Anya.
"I've had an incredible journey, an incredible time, what an experience," he said. "Anya Garnis is just an incredible dancer, an incredible choreographer."
"My highlight really may be a surprise, but being in the training room was the place I had the most fun and the most hard work, so being here was just the icing on the cake."
Next week, Abbey, Natalie, Susanna Reid and Sophie Ellis-Bextor will battle it out on the dance floor for Strictly's Glitterball trophy.
After the results show, Abbey tweeted: "Get in!!!!!! Ecstatic to be in the @bbcstrictly final! Wouldn't be here without all of your votes thank u all from the bottom of my heart."
The model, who is married to footballer Peter Crouch, then joined some of the show's producers for celebratory drinks.
Abbey wowed during Saturday night's semi-final (14 December), which saw her perform a salsa and an American Smooth, for which she received high praise.
Judge Bruno Tonioli remarked: "Another totally captivating performance, signed, sealed, delivered, you're mine."
Sir Bruce Forsyth and Tess Daly will present the final show next week where the winner will be crowned!
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