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New York Magazine has a brief interview with Sysan Batson, an acting coach that has taught Tom Cruise, Nicole Kidman and - yes - Diddy, among others. Here is what she had to say:

You trained P. Diddy for A Raisin in the Sun, after his inert performance in Monster’s Ball. Can you teach anyone to act?
If you know who I said “Don’t bother sending” to agents … Sean I could teach because the man has integrity, is very, very gifted, and is very smart. You have to have talent. Otherwise I really can’t work with you.