A backup camera is a special type of video camera that is produced specifically for the purpose of being attached to the rear of a vehicle to aid in backing up. Backup cameras are alternatively known as 'reversing cameras' or 'rear view cameras'.
I was going to mention a blonde joke but the photo speaks for itself I think. But I assume she was just trying for a self-portrait with the crowd in the background seeing that the camera is pointing the 'wrong' way. Gotta hand it to the boyfriend though.
Reverse macro ring
Reverse mounting lens for macro shooting. 50mm f1.4 lens on 58mm Canon mounting macro reverse ring, all mounted in reverse mode on macro 12mm keno tube (macro ring). :-) pic taken with PowerShot G5. Sorry for dusty environment ...