Sean "Diddy" Combs and Mary J. Blige will reunite, this time on the small screen, as guest stars on the season finale of ABC’s hit comedy "black-ish," in an episode set in the 1920s Harlem Renaissance, which airs this Wednesday, May 20, at 9:30pm.

The episode, titled "Pops’ Pops’ Pops," finds Jack and Diane (Miles Brown, Marsai Martin) looking for clues about their roots for their class assignment, a history of the Johnson family. But they can’t find anything out about the family’s past. Pops (Laurence Fishburne) comes to the rescue with a colorful story of how "Pops’ Pops’ Pops," great-great grandfather, Drexler Johnson, bet the future of the Johnson family against a ruthless gangster, Elroy Savoy. 

Combs will appear as Savoy, the gangster in question, owner of the swinging Savoy club where the Johnson ancestors all met (including Anthony Anderson as Drexler and Tracee Ellis Ross as showgirl Bea – photo above). 

Blige will play Mirabelle Calais, the club headliner. 

Renowned choreographer Fatima Robinson will choreograph the episode.

"Pops’ Pops’ Pops" was written by Vijal Patel and directed by Jonathan Groff.

Ahead of Wednesday finale, here’s a sneek peek: