Rihanna is celebrating her fifth studio album 'Loud' after it was just certified Platinum in America. 

She tweeted last night (January 26):

"Thank you #RihannaNavy for being so sexy and makin #LOUD platinum in the U.S."

The album also recently spent 3 consecutive weeks at number 1 in the UK, where it was impressively certified as triple Platinum. The Barbados-born star also revealed yesterday on Twitter that she has been confirmed to perform at an exciting event:

"It is CONFIRMED!!!! Brazil, I'm coming to you for Rock in Rio! I can't wait!! #brazilHereIcome"

Listen to her forthcoming single, 'S & M', here: