Martina McBride Good genes or good documents?!

Martina McBrideA glance through the years makes the pigeons all sing!

Here’s a 27-year-old version of the singer and songwriter who unleashed her musical pipes at the 1994 Country Music ‘Fanfest’ in Pomona, California (left) … the same year her hit song “Independence Day” came out.

And 28 years later… the 55-year-old mother of four recently grabbed the mic and jumped back onstage — as if there was no time for the country icon — at Tennessee’s Nashville Municipal Auditorium earlier this year (Turn right†

“Let the weak be strong, let the right be wrong!”

The question is…