Rihanna Will Be Named the Most Desirable Woman at the "Guys Choice Awards"

RIHANNA will receive the first-ever Most Desirable Woman award at the "Guys Choice Awards" . . . which tapes over the weekend and airs next Wednesday on Spike TV.



Sandra Bullock will get the Decade of Hotness award, Julia Louis-Dreyfus gets the Hot and Funny award, Emily Ratajkowskifrom the "Blurred Lines" video will be named "Our New Girlfriend" . . .



And "Sports Illustrated" Swimsuit cover models Chrissy TeigenNina Agdal and Lily Aldridge will be christened the Holy Grail of Hotness.



Male honorees include Norman Reedus (Biggest Ass-Kicker) . . . Matthew McConaughey (Guy of the Year) and Kevin Hart(King of Comedy).



Presenters will include Cameron DiazKeanu ReevesJason SegelAaron PaulJessica AlbaRosario DawsonOlivia Munn and the great Keanu Reeves.  (Click here for more on the show.)