Pamela Anderson reveals why she cut her hair short

(Michael Tran/FilmMagic)

Pamela Anderson cut her hair so she could ... run better? In response to a query from a fan, the "Baywatch" star revealed on Sunday that she got her new pixie cut for the New York City Marathon.

"Better to run the NYC Marathon for Haiti -- is been a nice change," she wrote.

The 46-year-old B.C. native was first photographed with her new haircut in October 2013.

"Aero Dynamic," she captioned an Instagram image of her new look.

In November, Anderson appeared on "The Ellen DeGeneres Show" and quipped that she had stolen the host's 'do.

"I just thought my hair had a life, and I wanted to kind of put that behind me and start fresh," Anderson said at the time. "I thought it would be good for the marathon, and it was."

It sure was! Anderson reportedly finished the NYC marathon on Nov. 3 in under six hours and raised $288,492 for Sean Penn’s J/P Haitian Relief Organization.

"Ouch," she captioned an Instagram image of herself postrace, with bags of ice on her hip and knee.

According to Behind the Chair, Los Angeles stylist Paul Desmarre cut Anderson's famous locks based on Jean Seberg's in the film "Breathless."

"It’s only for very young girls and women with a strong personality and spirit," he said of the crop. "You have to have confidence — it’s a strong accessory."