Beyoncé wishes her twins Rumi and Sir a happy 8th birthday with the help of her fans at her fourth Cowboy Carter show in London Thursday night.

Beyoncé celebrated her twin's 8th birthday with a sweet moment during her fourth "Cowboy Carter" concert in London.

Z's twins, Rumi and Sir, are set to turn eight years old this week and it seems they've had some major life changes ahead of ...