Momlogic and Harley Pasternak, trainer to Sophia Bush, Halle Berry, Eva Mendes and Katherine Heigl -- team up to get wewe in shape!

Being a part of our Zip Up Your Jeans: Eight Week Challenge will give wewe the motivation and encouragement wewe need to kick start a new you! jiunge 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, Harley majibu YOUR diet and exercise maswali -- sharing his exclusive tips with each and every one of you!

Plus, we're giving away daily prizes! Just kwa "weighing in" here and leaving a comment, swali au onyesha of support for hard-working mamas, you'll qualify for a chance to win Harley's book The 5 Factor Diet, and a trip to Los Angeles to train with the man behind the most famous hard bodies, Harley Pasternak!

Become a part of our challenge and get in to your skinny jeans, once and for all!