New York (AFP) – Superstar Rihanna and rapper A$AP Rocky have reportedly welcomed a baby boy, according to pop industry news website TMZ. The entertainment and fashion mogul behind the hits “Diamonds” and “Umbrella” gave birth on May 13 in Los Angeles, according to the tabloid. Representatives for the couple did not immediately respond to an AFP request for confirmation. No other details, including the child’s name, have been made public. Rihanna, 34, and A$AP Rocky, 33, announced they were expecting in January with a set of glamorous snow-dusted images taken in Harlem, the mother-to-be sport…