Rihanna was swamped by adoring fans last night and this morning as she turned 24.
The star has been staying in London to rehearse for the Brits and start work on her seventh studio album.
She had posted on Twitter: "Brit rehearsal went smoove! Next stop, set up studio in a hotel room! I'll be turning 24 making mu$ic!!! (sic)"
She later added: "This has to be the funniest night of my life!!! I have not STOPPED laughing!!!!!
"I can't believe I'm pullin an all nighter on my BDAY!!!"
She also attracted attention by retweeting and replying to a message from ex-boyfriend Chris Brown.
Take a look at photos of Rihanna leaving her hotel below.
Rihanna celebrates with her Navy
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