Missy Elliott Good Genes or Good Docs?

5/19/2013 2:30 AM PDT
Missy Elliott sure knows how to work it.

Here's the 26-year-old female rapper back in 1998 (left) -- and 15 years later, the 41-year-old gettin' her freak on at an event in Las Vegas this week (right).

She's supa dupa fly.