At inaugural rehearsal, the stand-in for Trump sported a very un-Donald-like haircut

The hair was the giveaway.

The man in the black coat, white shirt and red tie who raised his right hand as if to take the oath of the nation’s highest office on Sunday sported a military trim.

And that was just one way to tell that Greg Lowery, a 53-year-old vocalist in the US Army band, was no Donald Trump, and Sunday’s inauguration rehearsal at the US Capitol wasn’t the real thing.

But the sergeant major was a game stand-in for the soon-to-be 45th president as were other band members given prominent roles. The goal was to practice Inauguration Day events so everything goes off as flawlessly — and on time — as possible for the actual swearing-in on Friday.

Watch: stand-in swear in at Trump inauguration rehearsal

Lowery, who said his role was to “look the part as much as possible,” said the substitutes were chosen primarily because they are as tall as the people they were playing. He bought a new, red tie for the assignment, though he acknowledged it wasn’t Trump brand.