Music Mafia, a group known to leak unreleased singles and demos from major label artists, has struck once again with another new mix of a Frank Ocean feature.

Frank was credited as a writer on N.E.R.D.'s "Don't Don't Do It," which came out in December, but he is not featured in the final mix. Today we can hear what his contribution sounds like from his own mouth.

Take a listen below and read more about his contribution from Pharrell here.