NEW YORK — It’s Saturday at 9:30 p.m. and Stevie Nicks is singing on the phone. “It’s beautiful,” she says after singing the song’s chorus at the end of a 90-minute-plus interview, where Nicks excitedly discussed everything from her admiration for late icons and pals Tom Petty and Prince to her relationships with Harry Styles and Beyoncé. It was a …
