Mariah Carey, Nick Cannon, Swizz Beatz and Alicia Keys Brings Their Kids on Play Date [Photos]

How nice! Nick Cannon and Mariah Carey recently brought their twins to see Swizz Beatz and Alicia Keys' son Egypt. The superstar dads tweeted about the play date, tweeting and instagraming photos of them racing toy cars with the kids. Check out the photos in the gallery.