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Rihanna has pulled out of a charity gig to an illness.
Cee Lo Green filled in for the singer at the Women's Cancer Research Fund's annual fundraising dinner after Rihanna cancelled at the last minute.
It's cast doubt on whether she will be well enough to attend the Grammys on Sunday (February 13th).
But on her Twitter she said: 'Bronchitis and laryngitis boo! I'm still goin to rehearsals tho! Sunday is everything'.