Graeme O'Neil takes a look at the celeb tributes to Stephen Sondheim after he passed away, including from Barbra Streisand, Hillary Clinton, Catherine Zeta-Jones, Antonio Banderas, Steven Spielberg, Idina Menzel, Vanessa Williams, Anna Kendrick, Josh Gad, Bernadette Peters, and Lin-Manuel Miranda's tribute in "Tick Tick Boom".