Celebrity hairstylist John Barrett died on Wednesday, August 9, at 66 years old.

A trusted friend shared the news of his passing on Wednesday, accompanied by anInstagram postfrom his styling team.

He cared with great passion for his beloved family, friends, salon, and staff."

John Barrett smiling

The two worked together in the late ’90s until Diana’s untimely death.

“She said, ‘Do you want to have a laugh?'”

Barrett shares, referring to the fan letters she invited him to read through with her.

princess diana spencer

“She’s reading these letters, and we were just cracking up.

There was one from a plastic surgeon … saying, ‘I would like to consult with you.’

We laughed about that.”

martha stewart at john barrett salon

“[She] had an element of trust to just do what you like,” he said.

Shortly after the last time they saw each other,Diana diedat age 36.

Her tragic passing in a rogue paparazzi chase through Paris rocked the world.

“We don’t follow trends; we create trends.”

His clientele ranged from megastars to political powerhouses.

We will miss him sorely."

Stewart had even included Barrett in one of hersignature thirst trap selfies right from a salon chair.