Smith, 46, who was at the show to present an award to his wife, actress Jada Pinkett Smith, ran into his The Fresh Prince of Bel Air costar Ali backstage at the show in Newark, New Jersey.
Ali, 36, played Smith's cousin Ashley Banks on the popular sitcom from 1990 to 1996. The actress shared a quick selfie of the duo on Instagram, writing "Backstage @blackgirlsrock @mbib #imagineafuture #nofilter #fam #tatyanaali #willsmith #FRESHPRINCE."
The TV cousins have been reunited before, with Ali joining another Fresh Prince star, Alfonso Ribeiro, at the premiere of Smith's 2008 film Seven Pounds.
Smith gave a sweet tribute to his wife of 18 years at the BET event, and presented her with the Star Power award. The Focus actor couldn't resist showing a little PDA – he smooched his wife before rubbing her behind when she approached the stage.
Jada Pinkett Smith and Will Smith
Gilbert Carrasquillo / FilmMagic
The actor was also joined by daughter Willow, 14, and his mother-in-law, Adrienne Canfield-Jones on the event's red carpet.
