WATCH: ‘Name Check’ with Derek Luke

On this week’s “Name Check,” actor Derek Luke stops by The Post to chat with Michael Riedel about his role in the new “Sparkle” movie, working with Whitney Houston and being discovered in Hollywood by Denzel Washington. Page Six’s Mara Siegler dishes on Usher performing for the first time since his stepson’s death and Venus Williams launching her new fashion line in the Hamptons.