Popsugar Parenting Toddlers Lin-Manuel Miranda's Son Singing Mary Poppins Returns Song Lin-Manuel Miranda’s Son Saw Him in Mary Poppins Returns, and It’s Safe to Say He’s Obsessed 17 December 2018 by Alessia Santoro View On One Page Photo 6 of 11 ADVERTISEMENT () Start Slideshow “fanTASTic” 😭😂❤️— Moriah Henry (@MoriahHenry4) December 17, 2018 Share This Link Copy ← Use Arrow Keys → 6 Previous Next Start Slideshow ToddlersParenting VideosMary Poppins ReturnsLin-Manuel MirandaViral Videos