Smash musical “Hamilton” is so oversold that every night at the Richard Rodgers Theatre is like Saturday.

But the show’s success has ushers working so hard, some are wishing they had a break from the nightly throngs.

“The ushers have to work so hard,” said a Broadway insider, “because it’s such a mob scene every night.”

Some are even quietly expressing that they’d like a sabbatical at shows at other Nederlander-owned theaters — like “An American in Paris” over at the Palace, according to our spy.

The source added, “They also have so many celebrities coming in, it can be pretty demanding.”

VIPs who’ve seen “Hamilton” by Lin-Manuel Miranda include Jay Z and Beyoncé, Eminem, Bill Clinton, President Obama, Julia Roberts, Daniel Radcliffe, Tom Hanks, Reese Witherspoon, Laverne Cox, Amy Schumer, Sylvester Stallone, Jimmy Fallon and Oprah Winfrey.

The ushers won’t be getting any relief soon — the show’s sold out until September.