direct to your inboxBeyonce’s mum launched a scathing attack on Piers Morgan following his dramatic walk-off on Good Morning Britain.Tina Knowles let rip in an impassioned social media post after astonishing scenes on the ITV breakfast show on Monday morning.Piers, who announced this evening that he had quit GMB, stormed off set after weatherman Alex Beresford called him out over comments he made about Meghan Markle after her bombshell interview with Oprah Winfrey aired on CBS in America on