http://gawker.com/no-one-pronounces-...iha-1471480816
Technically there is no wrong pronunciation of Rihanna name. The "a" is pronounced differently in different places. People from the islands will be more inclined to say Re-an-na because of their accent but others would say Rih- ah-na.
Same with Aunt. It can be pronounced Ant like the insect or Ah-nt.
& Beyoncé is pretty self explanatory because of the accent mark over the e.
lov u