Hillary Clinton put part of Bergdorf Goodman on lockdown on Friday to get a $600 haircut at the swanky John Barrett Salon.

Clinton, with a huge entourage in tow, was spotted being ushered through a side entrance of the Fifth Avenue store on Friday.

A source said, “Staff closed off one side of Bergdorf’s so Hillary could come in privately to get her hair done. An elevator bank was shut down so she could ride up alone, and then she was styled in a private area of the salon. Other customers didn’t get a glimpse. Hillary was later seen with a new feathered hairdo.”

Clinton regularly sees salon owner John Barrett, who charges regular mortals $600 for a cut and blow-dry. Hair color can cost an extra $600.

It is not known how much, or if, Clinton paid for the haircut, and her reps didn’t respond to requests for comment. But Clinton’s attachment to her hairstylists is well documented.

The “Santa” recently referenced in her emails is Santa Nikkels, the proprietor of Santa’s Salon in Chappaqua.

And let’s not forget that her husband, Bill Clinton, was famously caught up in a 1993 controversy known as “Hairgate” when he got a $200 haircut on Air Force One as it was idling for an hour at LAX, shutting down two runways and diverting numerous flights.