US Republican presidential candidate Donald Trump and Democratic candidate Hillary Clinton have been zig-zagging across swing states on Monday, trying to firm up every last vote they can.
Ms Clinton been buoyed by a late surge in the polls, but is leaving nothing to chance, rolling out her biggest name supporters on election eve.
Who better to stitch a blue collar to the Clinton campaign at the end of her long walk home than The Boss himself?
"Let's all do our part so that we can look back on 2016 and say we stood with Hillary Clinton on the right side of history," said Bruce Springsteen, performing as Ms Clinton's rally on Monday. "That's why I'm standing here with you tonight with a dream of a better America."
Springsteen is a big draw for the white, working classes who have been deserting the Democrats in droves.
Ms Clinton's last-day odyssey took her on a battleground state tour from Oakland, Pennsylvania, Allendale, Michigan, back to Philadelphia for the Springsteen concert and then a midnight event in Raleigh, North Carolina.
There was the briefest of pauses for a photo opportunity with members of her press entourage as Ms Clinton embarked on her 2500-kilometre daytrip - cities where she counted on all her biggest guns.
"It will be a change election, and you have to decide whether it will be forward together or backward, and I think you know what the answer should be," said former US President Bill Clinton at Monday's rally.
"I am here tonight because I believe with all my heart and soul that Hillary Clinton is that leader," said first lady Michelle Obama.
"I'm asking you to work this one last day to elect this fighter, this stateswoman, this mother, this grandmother, this patriot, our next president of the United States of America, Hilliary Clinton," said US President Barack Obama.
The polls suggest the outgoing president may be right. After 10 years campaigning, Ms Clinton may become the US' first woman president, but it'll have been a very close-run thing.