What's The Big Frigin' Difference?!

Rev up your engines, because ballroom dancer Sasha Farber has fled the 'Dancing With The Stars' ballroom ... and now it's on you to hit the pavement and find the minor differences in these two snazzy shots.

The dance pro was out riding his motorcycle in LA, and the paparazzi managed to snag some hot shots. Take a Quickstep off the sidewalk and see if you have the moves to find the changes in these two images ... Act as if the Mirror Ball Trophy is on the line!