The weekend is almost upon us. Before you book back-to-back meals out with a little imbibing thrown in for good measure, pencil in a workout or two. Starting your weekend with a run, trip to the gym, or making a date at that new class you've been dying to try is a great way to ensure the weekend has a healthy element. Let these fit celebs be your inspiration — each of them made a point to fit in a quality workout this week.
Hilary Duff  wore lots of bright colors to the gym, sporting a pair of pink and orange Nike  shoes with a red bag and bottle.
Vanessa Hudgens  knows that a high topknot is the best way to keep her hair out of the way, even during a CorePower Yoga class.
By the looks of her pants drenched in sweat, Charlize Theron  had an intense session at YogaWorks.
Reese Witherspoon and Naomi Watts
Who wouldn't want to work out with Reese Witherspoon  or Naomi Watts ?
Reese Witherspoon  is flushed and glowing after a hardcore Burn 60 workout .