Valerie Bertinelli is 'proud' of her body after '64 years of gravity'

Valerie Bertinelli is as proud as ever after stripping down to her underwear and uploading a mirror selfie to Instagram.

Bertinelli was a guest on "The Drew Barrymore Show" Friday and addressed her viral post that she uploaded earlier this month.

Barrymore's co-host, Ross Matthews, asked Bertinelli why she decided to upload the risqué photo. 

"Well, you know what, I have been coming to terms with my body now, aging, and I saw myself in the light. And I went, ‘Oh I'm not mad at that,'" she said.