It's the second installment of John Krasinski's 'Some Good News', a Youtube series which sees the actor talking about the more positive things happening in the world at the moment.
In this episode, he had his wife, actress Emily Blunt, and Lin Manuel Miranda help him surprise a 'Hamilton' superfan.
The fan, Aubrey, is nine years old. She was meant to see 'Hamilton', her favourite musical ever, in person this week for the first time. However circumstances being what they are, she couldn't.
Instead she and her mum watched 'Mary Poppins Returns'. After all, that at least features 'Hamilton' star and writer Lin Manuel Miranda. Aside from the lead of the Disney sequel, Emily Blunt, appearing, Miranda also popped into the zoom chat to surprise Aubrey.
But that wasn't the only good news in store. Suddenly all the 'Hamilton' cast - including Anthony Ramos, Leslie Odom Jr, Daveed Diggs, Renee Elise Goldsberry, and a dozen more stars - appear in the zoom chat to sing "Alexander Hamilton" to Aubrey.
She's so blown away. It's the sweetest thing.