'Black Swan' premiere

Momlogic and Harley Pasternak, trainer to Natalie Portman, Halle Berry, Eva Mendes and Katherine Heigl -- team up to get YOU in shape!

Being a part of our Zip Up Your Jeans: Eight Week Challenge will give you the motivation and encouragement you need to kick start a new you! Join momlogic community leader Christina Montoya Fiedler to change bodies -- and lives -- with trainer to the stars Harley Pasternak.

In this group, you'll follow along using a free trial two week membership to Harley's 5 Factor Diet, getting weight loss tips and simple meal plans from Harley himself! AND on Tuesday and Thursday,...