Kirstie Alley shows off her ever-decreasing frame at her book The Art of Men signing

Kirstie Alley famously shed 100 pounds during her stint on Dancing With The Stars last year and she looked ultra glamorous as she posed with her tome The Art of Men at Barnes & Noble in Los Angeles.

Her shrinking waist was accentuated by a leather jacket, black mini skirt and leopardskin shoes teamed with black tights, while subtle eye make-up completed the look.

Kirstie Alley, 61, has been busy competing on the all-star season of the show with partner Maksim Chmerkovskiy where she has proved to be a fan favorite.

And her slim frame is down to the grueling seven day a week practice sessions for the ABC series.

Kirstie Alley has attracted some controversy with her book The Art of Men, in which she has admitted to falling in love with Patrick Swayze during the filming of their 1985 telemovie North and South.

Kirstie Alley shows off her ever-decreasing frame at her book The Art of Men signing