The bedroom sessions: Rihanna flaunts her figure in see-through bra and silky pyjamas as she enjoys a drink during late night stint in recording studio

Her fans have urged the star to speed up work on her highly-anticipated new album.

However, Rihanna seemed more than relaxed as she hit the recording studio for a late night session on Friday.

The stunning pop superstar, 27, appeared to be dressed for bed as she arrived for a stint in front of the mic at 3.30am.

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Keeping you up? Rihanna seemed more than relaxed as she hit the recording studio for a late night session on Friday.