rumi carter
Rumi Carter, who was born a twin alongside her brother, Sir, in 2017, joined her mom for a guest appearance on "Cowboy Carter" — to historic results.
They're so big!
Many assumed the children were the couple's twins, Rumi and Sir. They were not.
Donald Trump swapped into the snap? Check.
WHAT'S HAPPENING
On their one-month birthday, no less.