Holy unexpected Tonyfeels, Batman!
This keeps happening, I’ll have my music on shuffle, and a song will come on that I’ve heard before, but suddenly I realize that, refracted through the lens of some Avengers-related thing, it is even better than I ever imagined.
So, new headcanon accepted, this song is completely, irrevocably pre-Iron Man Tony Stark, while he was still a whirlwind of booze and parties and meaningless sex and fast cars and war profiteering and extravagance and smiles that didn’t quite make it to his eyes.

So I left, that is it.
That’s my life, nothing is sacred.
I don’t keep friends, I keep acquainted.
I’m not a prophet, but I’m here to profit.