Foo Fighters star Dave Grohl, 55, admitted to cheating on his wife Jordyn Blum in a heartbroken statement on his Instagram account last night – and confirmed he had secretly fathered a baby girl. Grohl married Blum – a 48-year-old model and TV producer – in 2003 and together they are parents to daughters Violet Maye, 18, Harper Willow, 15, and Ophelia Saint, 10. Taking to his Instagram account last night, the singer revealed: “I’ve recently become the father of a new baby daughter, born outside of my marriage. I plan to be a loving and supportive parent to her. “I love my wife and my children,…