Only Blue Ivy could tell her parents, Beyoncé and Jay-Z, to be quiet, and that’s exactly what she did at the 2018 Grammys. Her iconic moment has earned itself in showbiz history – and we’re here for it. Beyoncé and Jay-Z have been together since the early 2000s before they tied the knot in 2008. The music stars then welcomed Blue Ivy Carter, 12, three years later. Then, two years after the release of Lemonade and the Jay-Z cheating scandal, they welcomed twins Rumi and Sir in 2017. But the following year, Blue proved deep down, the celebrity couple were just like all other parents being bossed…