With cheers and fireworks, the island nation became a parliamentary republic, swore in its first president and declared Barbadian-born Rihanna a national hero.
Dame Sandra Mason previously served as governor general. Barbados hopes to become a republic before the 55th anniversary of its independence from Britain in November.
Tropical Storm Dorian "is expected to be a hurricane when it moves near Puerto Rico and eastern Hispaniola" this week, the National Hurricane Center says.
