Pop star Rihanna let rip in a series of foul-mouthed Twitter posts, saying she had to fight her way out of a Paris train station after a crowd of French fans gathered to greet her. The singer from Barbados had earlier posted a photo showing herself at London's St Pancras station -- and the time of her train's departure for Paris marked on a station sign. She has 25 million followers on her Twitter account. She arrived at the Gare du Nord in Paris on the Eurostar late Saturday to find an enthusiastic crowd waiting to greet her. The station's security team and her own bodyguards struggled to protect her from the crush as she tried to leave the station. "The French are f(expletive) insane!!!" she tweeted a little later. "FYI, if u push me, you WILL get pushed the (expletive) back!" she added. "I just had to fight my way out of a damn train station!!!" she exclaimed.