Joe Jackson, patriarch of pop’s most famous family indisputably was an ‘unseen  hand’ behind the successful careers of  music superstars The Jackson 5. But the former manager of the group and father of 11 was widely criticised for being the most ‘unbending’ strict father, which often left his children struggling to connect with him and led to an estranged relationship with  Michael Jackson  that lasted after the untimely death of  “Man in the Mirror” singer in 2009.