Rihanna's Half-Naked Body HEADDRESSED TO KILL

8/1/2011 11:03 AM PDT

Rihanna's Barbados Festival Pics -- Half-Naked Body

ruffled some feathers this morning in her home country of Barbados -- donning a fancy red headdress, and stripping down to a tiny bikini and stockings ... all for the local harvest festival parade!

It's called Kadooment Day -- which, historically, had its early beginnings in the 17th century on the sugar cane plantations and HOLY MOTHER LOOK AT RIHANNA'S BUTT.