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1 December 2011, 11:37 | Updated: 1 December 2011, 11:50
The singer sported the new bob on the set of her 'You Da One' video.
Rihanna has been spotted sporting a new blonde hair cut ahead of her appearance at this weekend's Capital FM Jingle Bell Ball.
The star is set to headline the opening day of the event, which takes place at the O2 Arena in London on Saturday and Sunday (3rd-4th December).
RiRi was sporting the blonde bob on the set of her video for 'You Da One' yesterday (30th November).
In a message on Twitter this morning, Rihanna wrote: "Just got bk from shooting shooting #YouDaOne music video!"
Other acts due to perform on day one of this year's Jingle Bell Ball include Calvin Harris, Pixie Lott, Jason Derulo, Labrinth, The Wanted and Olly Murs, who will open the show.
The Sunday will be headlined by Jessie J, with additional performances from Ed Sheeran, One Direction, Wretch 32, Emeli Sande, JLS and The Saturdays.
Check out our Jingle Bell Ball area for all the latest news and information on this weekend's event.