"Daniel Julez Smith, Beyonce’s sister Solange Knowles’ 5-year-old son. So the kid in the “super fresh” tuxedo and Nike Dunks is Jay’s nephew, not his son. Jay and B are private, but that would’ve been a fairly massive secret for them to have kept so long . (Because they’re so private, wasn’t it kinda cool to hear Beyonce tell her husband ”I love you” in her acceptance speech for Best Female Vocal Performance?" - Mike Bruno