John Barrett, the celebrity hair stylist, has died. He was 66. The cause of death was blood cancer, Julianne Jaffe, a close friend of Barrett’s as well as his health proxy, confirmed in a statement.

John Francis Barrett was born on Jan. 10 ... Image Mr. Barrett’s 6,400-square-foot hair salon also offered manicures, pedicures and makeup services.Credit...Dina Litovsky for The New York ...