Kehlani Then And Now -- Good Genes or Good Docs?!

Kehlani's looks over the years are killer 🔥

Here is a 19-year-old version of the smokin' hot singer-songwriter and dancer at SXSW Film-Interactive-Music in Austin, Texas back in 2015 (left).

And, over a decade later, Kehlani showcased her tatted décolleté at the 6th Annual Hollywood Unlocked Impact Awards earlier this month (right).

The 31-year-old will grab the mic tonight at the BET Awards -- and is up for several nominations, but the key question here is: Good Genes or Good Docs?!