Sinead O’Connor has been nominated for the Rock and Roll Hall of Fame. The ‘Nothing Compares 2 U’ hitmaker – who died in July, aged 56 – has been nominated for the prestigious accolade alongside the likes of Mary J. Blige, Mariah Carey, Cher, and Oasis. John Sykes, the chairman of the Rock and Roll Hall of Fame Foundation, said in a statement: “This remarkable list of nominees reflects the diverse artists and music that the Rock and Roll Hall of Fame honours and celebrates. “Continuing in the true spirit of rock and roll, these artists have created their own sounds that have impacted generatio…