Until Hamilton I had no idea I could get so emotional over George Washington but One Last Time gets me every time.
ETA: My fellow Hamilton fans, we are all Jennifer Garner, high on laughing gas and crying about Hamilton. (Google it.)
I made the dreadful error of watching video of the cast performing it in the White House for Obama. I was bawling for half an hour. I think it's Chris Jackson's voice. Especially that note at the end.
The worst is to listen to workshop stuff. Hearing Leslie Odom Jr's voice break and collapse into sobs during the Dear Theodosia Reprise wrecked me for the rest of the day...