Kanye West: No Rehearsal ... Hours Before VMA Performance

Kanye West's MTV VMA performance is shrouded in so much secrecy, he hasn't even taken the stage for a 'run through' ... just hours before the live awards show kicks off.

Our sources backstage at the VMA's tell us, unlike other artists, Yeezy has not performed a rehearsal of whatever the hell he plans to do on stage, and "nobody knows what he's doing."

However ... we're told execs aren't too worried because they know Kanye delivers when it counts.

As we previously reported, Kanye gets 4 minutes to do whatever he wants, including talking, rapping, dancing, or even just staring at the crowd.

With no rehearsals yet ... the latter ain't looking too bad.