As it turns out, the spur-of-the-moment decision was made entirely impulsive.

"I was in L.A. with my really good girlfriend," she explained. "She was getting her haircut at Paul Jean on Robertson and he was like, 'Your hair's holding you back.' I was like, 'Tell me more, Frenchman.' And he just cut it off."

That’s not to say it was love at first sight.

"I immediately regretted it," Brynn admitted. "I cried. But now I finally like it."

Keep reading to see more star's jaw-dropping hair transformations. And don't miss E! News tonight at 11 p.m. more New York City Ballet red carpet interviews.

The Real Housewives of New York City airs Tuesdays at 9 p.m. on Bravo.