As part of Hamilton's day at the White House March 14 meeting First Lady Michelle Obama, working with school kids and performing two numbers from his show, creator/star Lin-Manuel Miranda appeared with President Obama on the Rose Garden steps and performed a freestyle rap based on key words the president of the United States (“POTUS”) flashed at him.
Here is the clip:
— The White House (@WhiteHouse) March 15, 2016
Obama introduced Miranda and the cast, which then performed numbers from the show. Here is that clip as well. The president's remarks begin at the 43:49 mark, and the performance begins at 53:50.
The cast has been posting photos, comments and videos on Twitter at #Bam4Ham.