Hubert posted a video to Facebook blasting the couple. The text of the post simply reads, "The Smiths."
"First of all, miss thing, does your man not have a mouth of his own with which to speak? And the second thing is, girlfriend, there's a lot of [expletive] going on in the world that you all don't seem to recognize. People are dying. Our boys are being shot left and right, people are hungry," Hubert said in part. "It just ain't that deep."
Hubert went on to say that asking other actors and actresses to boycott the award show would jeopardize their careers and standing in Hollywood.
For the remainder of her three-minute video, Hubert insinuated that Pinkett-Smith's proposed boycott of the Oscars is to spite the Academy because her husband did not get a nomination for his role in the film, "Concussion."
"Maybe you didn't deserve a nomination. I didn't think, frankly, you deserved a Golden Globes nomination with that accent, but you got one," Hubert said. "You ain't Barack and Michelle Obama and y'all need to get over yourselves."
You may recall, Hubert was replaced in season four of "Fresh Prince" by actress Daphne Maxwell Reid over a contract dispute.
"You have a huge production company that you only produce your friends, your family and yourself. So you are a part of Hollywood. You are a part of the system that is unfair to other actors. So get real," Hubert said.
Pinkett Smith announced her decision to boycott the awards on Facebook. "Begging for acknowledgement, or even asking, diminishes dignity and diminishes power," she said. "And we are a dignified people and we are powerful."
She added: "Let's let the academy do them, with all grace and love. And let's do us differently." The video had amassed 4.5 million by mid-Monday afternoon.
Alongside Pinkett Smith, director Spike Lee also said he will boycott this year's Oscars.
Academy of Motion Pictures Arts and Sciences President Cheryl Boone Isaacs issued a statement promising more diversity, and quickly, after both Lee and Pinkett spoke out Monday.
"This is a difficult but important conversation, and it's time for big changes," she said in a statement released Monday night. "The Academy is taking dramatic steps to alter the makeup of our membership. In the coming days and weeks we will conduct a review of our membership recruitment in order to bring about much-needed diversity in our 2016 class and beyond."