Elisabetta Canalis Dancing With The Stars Hollywood formal dress

Pump iron much??

Dancing With The Stars is known for helping certain celebs lose weight (Ricki Lake and Chaz Bono are this season's biggest losers so far), but since Elisabetta Canalis didn't really need to lose weight, the rehearsals are apparently giving her a ridiculously buff bod!

George Clooney's ex showed off her toned arms as she left practice in LA on Saturday. The flowing dress is quite a contrast to the glowing guns.