I could say all of act one of Next to Normal, but I hate when people respond by not properly answering the question, so I will say- Just Another Day, from Next to Normal.
"All the world's a stage,
And all the men and women merely players:
They have their exits and their entrances;
And one man in his time plays many parts..."
~Jaques - "As You Like It" Act 2, scene 7
This is asking, like, you could listen to the musical all day, not the individual song, right?
I could listen to Curiosity/Prayer all day long, but not that whole score.
Life of the Party from Lippa's The Wild Party, however. That album could and sometimes does take up longterm residence in my CD player (I know, I'm so old school, listening to actual discs no mp3s!)