Actress Regina Hall sits on the couch to chat about "The Best Man: The Final Chapters."

Russell Dickerson stops by to chat about his new album.

Matthew Perry discusses his memoir, "Friends, Lovers, and the Big Terrible Thing."

Actress Greta Onieogou sits down with Jennifer and talks about her Russian roots, sharing that she still speaks her native tongue with her parents. Jennifer then surprises the "All American" star with New York Times bestselling author and viral star Tabitha Brown, whom Greta and her family adore.