Rihanna caused chaos when she arrived in Paris on the Eurostar on Saturday night - because she'd tweeted an image showing her 25,144,825 followers exactly which train she was arriving on.
Earlier in the evening, Rihanna posted a photograph of her train, complete with a departure board indicating that she was travelling on the 19:01 to Paris Nord.
By the time she arrived in Paris, she was surprised that hundreds of screaming fans were waiting for her - and her tweets indicated that she wasn't happy about it.
She tweeted: "The French are f***** insane!!!"
Followed by: "FYI, if u push me, you WILL get pushed the phuck back! Papz and crazies included!!!"
She added: "I just had to fight my way out of a damn train station!!! Y'all are outta control with this s*** in Paris!!!"
A security chief at the Gare du Nord wasn't happy that the 24-year-old singer decided to advertise her travel plans - and claims that she put other travellers at risk as a result.
The security chief told The Sun: "It was absolute chaos, and all Rihanna's fault. What Rihanna did was utterly irresponsible. There was genuine fear among other people at the station."
Click on the image below for some alternative things to do in Paris...