"Turn your pear into a sweet, tight peach"

VIDEO: Callanetics: 10 Years Younger in 10 Hours
STYLE: Toning; isometric conditioning
INTENSITY: Moderate to high, depending on skill level
STRUCTURE: 50 minutes long, broken down into short segments covering pretty much every part of the body
GIST: Holy wow, I'm a believer. Provides an all-over tone focusing on the crucial pelvic floor and core muscles; superior instruction with modifications and injury warnings. Also the music is weird and awesome.

Pure Barre, eat your heart out. Callan Pinckney owns your ass.

I mean that literally. All that fine-tuned butt-sculpting and ab-scooping currently on sale for $25/class at Pure Barre or True Barre or any of those ballet-related Pilates offshoots? It's all here in the first Callanetics video from 1989, "10 Years Younger in 10 Hours."

Despite the gimmicky title, this program doesn't eff around. All the exercises are isometric -- meaning they're done in a mostly static position, with a range of motion that's limited to about an inch -- and they focus on the tough-to-reach pelvic floor, core and thigh muscles. These movements go hard, yet they're also wonderfully relaxing.

Check out those gams! Lady's nearly 50. Dang.

Callan, with her tight dancer's body and chic mop of auburn curls, is like a cross between a chilled-out Katherine Hepburn and your mildly eccentric rich aunt who almost made it to the Kirov Ballet until that awful horseback-riding accident. She exudes confidence and competence, and she's bossy in a gentle, concerned way. I'm in love.