What was the most powerful man on earth thinking or saying when he came face to face with ... President Obama? You tell us! Send in your captions for this pic!
All you have to do to play is click "Comments" below and submit your best caption(s) - as many as your heart desires. Go to it! We will announce a winner Monday.
Best of luck, Beliebers. Best of luck.
President Obama with Justin Bieber
