The former Grey's Anatomy star recently took to to show off her new buzz cut.

"Whelp, this just happened!," she captioned a photo of her newly-cut ponytail. "Welcome #Change #LetItGo Donating to #LocksOfLove."

"#AlreadyTimeForATrim #FastGrowingHair #HappyMonday," she added earlier this week (begs16Sep16), while showing off a closer picture of the cut.

The 41-year-old is not the only celebrity to cut off her long hair for the Locks of Love charity, which provides wigs to North American children suffering from medical conditions that cause hair loss - in 2014, actress Shailene Woodley donated her hair to the organisation while she was playing a cancer patient in The Fault in Our Stars.

Singer Kellie Pickler also ditched her long locks in solidarity with her close friend who was battling breast cancer in 2012.