Reese Witherspoon shorts hat stanford legs st. patrick's day

Does Reese Witherspoon EVER take a break from working out?! Then again, she's got a wedding coming up, so we're guessing she's going to be busting her booty every day until she walks down the aisle with beau Jim Toth.

This morning we spotted the cheerful Oscar winner running with a gal pal in Los Angeles, and it looks like she doesn't have to worry about anyone pinching her today! Wonder how many other celebs are rocking green today? We KNOW Paris will!