The `We Found Love` singer is currently cruising around the Mediterranean on a yacht with pals and managed to injure her foot when she dropped a bottle on it while pouring drinks for her guests.

She tweeted: "Bartending lastnight, dropped a bottle, broke it, my foot is still bleeding!!! (sic)"

Rihanna`s assistant Jennifer Rosales posted a picture on Instagram of the injury with the caption "It is not a vacation until someone breaks a toe!"

It is unclear why Rihanna was behind the bar but it was reported last week that exhausted staff on her private yacht were struggling to stay awake while she and her pals partied.

"The gang stayed up singing and dancing until dawn.

"She`s a lovely girl but the crew are only getting a few hours sleep a night. And they have to be prepared to be vigilant and make sure she doesn`t get hammered and fall into the sea."

Rihanna reportedly stocked up on 25 bottles of gold Armand de Brignac Champagne, 60 bottles of Peroni and Corona beer and 10 bottles of tequila.
sections: Celebrities