Sean Penn was spotted out for a jog along the beautiful Pacific Coast Highway recently.
He was jogging along while his personal trainer rode a bike next to him, keeping him motivated.
It seems Sean has lost a whole bunch of weight over the past year!
Even through his jogging gear you can see how skinny his waist is. Maybe it's for a movie.
Regardless, he's looking good! He must be feeling good!
Way to get fit, Sean!
[Image via FameFlynet Pictures.]