Gwen Stefani Good Genes or Good Docs?

10/21/2013 12:10 AM PDT

Gwen Stefani: Good Genes or Good Docs?

There's "No Doubt" Gwen Stefani's looks are rock steady.

Here's the 28-year-old punk rock princess putting her best bindi forward at the Grammys back in 1997 (left) -- and 16 years later the 44-year-old mother of two (soon to be three) at a gala last week (right).

She ain't no "Hollaback Girl."