What DJ Khaled actually does has always been a mystery.

When asked to explain it, Khaled claims to be a wiz at layering vocals -- but he's neither a producer nor an engineer.

Whatever he's doing works: He currently has the number one song in the land ('I'm The One'), and an endless stream of high-profile rappers and singers who will jump on his tracks even though Khaled makes no discernable contributions to the wax.

Pigeons and Planes set out on the streets of New York and tried to get folks to explain what Khaled does.

So it's still a mystery.