Rihanna has changed her image once again and this time around the Diamonds singer has gone grey.

The singer tweeted yesterday (@rihanna): "Grey is the new black! Blondies, it’s quiet for y’all! #brrr" and she added pics of her new look.

The 25-year-old Barbadian isn't the first popstar to opt for the extreme hair colour, as Lady Gaga, Nicole Richie, Kelly Osbourne, Pixie Geldof and Kate Moss have all tried out the look over the years.