The Chicago rapper is in the negotiation phase of landing the role.
Former President William Jefferson Clinton and U.S. representative Elijah E. Cummings will join the president at the event.
The Grey's Anatomy veteran says he was blacklisted from Hollywood.
Critics expect the film to be up for several awards this season.
The music icon sent the gift to congratulate Monáe on the release of her new album, The Electric Lady.
The two-time Tony Award winner plays a witch in the chilling FX series.