, Beyoncé and Jay-Z, hit copy + paste on their firstborn, Blue Ivy, to have their daughter Rumi, because she is a dead ringer for her big sis.Rumi and her twin brother, Sir, both six years old, have stayed almost completely out of the spotlight, but the youngster posed with her mom backstage after a recent stop on the Renaissance tour, and she seriously looks just like 11-year-old Blue Ivy, but smaller. Mom and daughter posed with some very special guests—Madonna (!) and her daughters Mercy, Stella, and Estere, per *—*backstage after a performance at MetLife Stadium in East Rutherford, New Jersey, and Madge was kind enough to upload the pic to her Instagram Stories, so it could be archived by fan accounts.