rihannashadowpriers460.jpg What a "Rude Boy!"

Rihanna and Piers Morgan got into a heated exchange - via Twitter! - on Sunday night after the CNN talk show host tweeted that the pop singer needed to "grow her hair back" following her live performance at the closing ceremony of the Paralympic Games.

The Barbadian beauty happened upon his tweet and retaliated with, "grow a d*ck... FAST!!!!" Ever the diplomat, Morgan diffused the situation when he jokingly asked, "This a good time to ask for an interview?" to which the "Umbrella" crooner quipped, "haaa! Only if it's not about cosmetics! But phuck yea lets do it!!!!" RiRi is such a good sport!

So is an interview in the works? We'll have to wait and see!