Drew Barrymore's weight loss photos have been circulating the last few weeks. And can we just say "wow"?

Barrymore revealed she lost an incredible 20 pounds while filming her new show Santa Clarita Diet thanks to a healthy diet and exercise regimen. Barrymore explained on the Today show that she gained weight because she “sort of let myself go, due to personal circumstances.” She was talking about her divorce from Will Kopelman.

CLICK HERE TO SEE DREW'S BEFORE AND AFTER PICTURES ...

Drew Barrymore and Will Kopelman Drew Barrymore (in Tadashi Shoji) and Will Kopelman were all smiles at the 'Blended' premiere in May 2014 (Photo: @Parisa).

But Barrymore said her Santa Clarita Diet character Sheila inspired her to drop the pounds. “I thought, ‘I could come alive with Sheila,’ and it was a really great goal line for me, because I think as much as the weight loss, everything’s just really subtle,” she said.

“It’s attitudinal, it’s empowerment, it’s confidence. It’s all of these things, that’s she’s lost in her life, that I sort of felt like I had lost in my life, and it’s such a blessing to come alive with her. And it really was so positive for me.”

HOW DID DREW LOSE SO MUCH WEIGHT? DETAILS ...

Barrymore's physical transformation has been mirrored by an emotional journey. Barrymore called her divorce “just like my worst nightmare.” She wanted to raise her kids in an “ultratraditional way.” And this threw a wrench in her plan. So how is she moving on from her difficult divorce?

Drew Barrymore - November 2014 Drew Barrymore wore baggier clothing while out with her family in NYC in November 2014 (Photo: Splash News).

Again, it was thanks to Sheila. “She’s going through like a real feminist empowerment moment, albeit, it’s inappropriate,” Barrymore said. “But it was really fun to be her and she totally gave me a wakeup call in my own life.” She and Kopelman have also been co-parenting together.

HOW DID DREW AND WILL ARRANGE CUSTODY AND THEIR FINANCES? DETAILS ...

We’ve seen Barrymore go from a child star to a troubled teen, free-spirited 20-something to a sophisticated adult. And she’s changed her look many times along the way.

Here's a glance at her style now and then.

1. Godiva’s 90th Anniversary – May 2016

Drew Barrymore - Godiva's 90th Anniversary Drew Barrymore admitted that she gained some weight during her divorce from Will Kopelman but she was all smiles in Kate Spade New York at Godiva's 90th anniversary in NYC in May 2016 (Photo: Splash News).

2. Book Signing – January 2014

Drew Barrymore - Book Signing Drew Barrymore flaunted her baby bump at a book signing in January 2014 (Photo: CL / Jen Lowery / Splash News).

3. Calvin Klein Spring 2007 Fashion Show After-Party – September 2006

Drew Barrymore - Calvin Klein Spring 2007 Fashion Show After-Party Can you spell hot? Drew Barrymore looked stylish and sophisticated in a classic black dress and with her dark hair in a chic updo at the Calvin Klein Spring 2007 Fashion Show After-Party in September 2006 (Photo: Splash News).

4. Kids Choice Awards – April 2001

Drew Barrymore - Kids Choice Awards Drew Barrymore sported short blond hair at the Kids Choice Awards in April 2001 (Photo: Splash News).

5. Teen Years - 1991

Drew Barrymore - Teen Years With long, wavy blond hair and a sexy dress, Drew Barrymore looked completely different as a teen out in L.A. in 1991 (Photo: Gary Kaplan Video LLC / Splash).

6. ‘E.T.’ - 1982

Drew Barrymore - E.T. Drew Barrymore first became famous as the adorable little girl in 'E.T.' in 1982.

What do you think of Drew Barrymore’s new look? Let us know your take in the comments section below!