Fitness Abs 10-Minute Fast and Furious Flat-Belly Workout Scott Admin posted on 2 years ago — updated on 1 second ago 435 views Flatten your belly and tone your core in just 10 minutes with Beachbody Super Trainer Autumn Calabrese. These moves are from Autumn's program 80-Day Obsession. fitness abs workout quick Autumn Calabrese Beachbody Scott Follow Author, educator, musician, dancer and all around creative type. Founder of "The Happy Now" website and the online jewelry store "Silver and Sage".