Lin-Manuel Miranda performs “The Hamilton Mixtape” at the White House Evening of Poetry, Music, and the Spoken Word on May 12, 2009.

How crazy is this? They all laughed; they thought it was a joke, but six years later this idea that people laughed at is the biggest hit Broadway has seen in decades. He believed in this show so much, and he refused to let it die and now it’s a reality. I love this man and his passion for his work. What a genius.

Here’s the full video, it’s absolutely worth watching: