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Hit Music Maths: Do You Know Your Pop Numbers?
Beyonce was born on 4th September, while her husband Jay-Z celebrates his on 4th December, and her mother too was born on the 4th. The pair married on 4th April and had IV tattooed on their wedding fingers to symbolise the date. It has been suggested that their daughter Blue's middle name 'Ivy' was chosen as a reference to these Roman numerals. No surprise then that when Beyonce wanted to add a splash of luck to her new album, she opted for the title '4'.