Rihanna Spends Birthday Working

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February 20, 2012 | 7:26am EST

Pop superstar Rihanna pulled an all-nighter ahead of her birthday on Monday – to record new music.
The Umbrella hitmaker partied in London over the weekend to mark turning 24, but turned her attention to work on Sunday as she rehearsed her performance for the Brit Awards on Tuesday.

And she refused to take any more time off to enjoy the lead-up to her big day, instead choosing to create new material.

In a series of posts on her Twitter.com page, she writes, “Brit rehearsal went smoove (sic)! Next stop, set up studio in a hotel room! I’ll be turning 24 making mu$ic!!!

“I can’t believe I’m pullin an all nighter on my BDAY!!! Only for the (fans) tho! Got rehearsal in like 2 hrs.”

The star, real name Robyn Fenty, was inundated with well wishes from her fans – and former boyfriend Chris Brown even took to the microblogging site to wish his ex all the best for her special day.

He declared, “HAPPY BIRTHDAY ROBYN!”, prompting Rihanna to reply: “Thanks!”