Axl Rose GOOD GENES OR GOOD DOCS?!

4/18/2016 6:56 AM PDT

Axl Rose -- Good Genes or Good Docs?!

Axl Rose's looks are still rockin'!

Here's a 27-year-old version of the Guns N' Roses frontman at a Rolling Stone event back in 1989 (left) and 27 years later ... the maimed 54-year-old Coachella headliner onstage in Vegas last week (right).

"Welcome to the Jungle."

The question is ...