Credit: Jason LaVeris/FilmMagic; Evans Vestal Ward/Bravo/NBCU Photo Bank via Getty Images

A new haircut for a new decade!

Real Housewives of Beverly Hills star Yolanda Foster revealed a new chic bob for the three-part reunion show, which begins airing Monday, March 17.

Although the tension with fellow star Lisa Vanderpump is palpable, the cut isn't a metaphor for her severing ties with her castmates. Instead, the Dutch model (and mom to model Gigi Hadid) chose to mark a milestone birthday on Jan. 11 with a glamorous new style by hair guru Chris McMillan, who famously styles Jennifer Aniston, Miley Cyrus, and Kate Hudson.

"I did it on my 50th birthday as a symbolic start of a brand new era and to prove to myself that I still have balls after my two-year battle with Lyme disease," the gorgeous blonde exclusively tells Us Weekly.

Her new bob haircut isn't the only major change Foster is making in her life: She and husband David Foster are selling their jaw-dropping Malibu mansion for $27.5 million. "This is our dream home, but due to my battle with Lyme disease for the past two years I just don't have the strength to run this almost 5-acre property anymore and should really focus on my recovery with as little stress as possible," she told Us.