(Cover) - EN Showbiz - Rihanna gave her fans in Brazil an early morning surprise yesterday.

The 23-year-old Barbadian singer was given a wake-up call by the crowd who had gathered outside of her hotel to see her and she did not disappoint when she appeared on her balcony.

Rihanna had apparently just woken up and was sporting a pair of grey pyjamas that were short enough to leave little to the imagination.

She decided not to be vain and waved to her fans wearing no make-up and huge bed hair.

The Umbrella star blew kisses at the waiting crowd before scurrying back inside.

She is currently in the South American city of Rio de Janeiro as part of her Loud world tour.

Rihanna has teamed up with Coldplay on their latest album and recently announced that the next single to be released from her own record will be We Found Love. (C) Cover Media