Neil Patrick Harris: Tony Awards Opening Number - Watch Now!

Neil Patrick Harris is joined on stage by Mike Tyson during the opening number at the 2013 Tony Awards held at Radio City Music Hall on Sunday (June 9) in New York City.

The 39-year-old actor opened the show with a number “bigger” than previous years and he was joined by the casts of many of the shows on Broadway right now – including the nominated Matilda, Cinderella, Bring it On, A Christmas Story, Pippin, and more!

In case you missed it, check out photos of Neil on the red carpet earlier in the evening with his fiance David Burtka.

FYI: Neil is wearing Calvin Klein Collection.