Did you know super producer Mike WiLL Made-It is the guy doing the "Creed II" soundtrack?
It's true ... and Mike tells TMZ Sports it's gonna blow your mind.
FYI, Mike is one of the heaviest hitter in hip-hop -- he just won a Grammy for the work he did on Kendrick Lamar's hit single, "Humble."
Now, Stallone has charged Mike with overseeing the music to his beloved franchise -- and Mike says he's ready for the moment.
"The soundtrack is crazy," Mike says .