Rihanna shocks her fans with foul language

London, (ANI): Rihanna has reportedly shocked her legions of fans with a foul four-letter rant at fellow celeb on Twitter. The shocking language came just hours after the 22-year-old star had reached the three million mark for followers on the website.

The pop siren is believed to have unleashed the word in response to US rapper Katt, who compared her to a cartoon dog, reports the Sun.

“Watchin clifford the big red dog =) somehow im reminded of @Rihanna idk (I don't know) why tho," Katt had posted. In response, Rihanna tweeted on Thursday: “LMAO (Laughing my a*** off), Katt u lil c***."

Meanwhile an angry fan said that the singer should not have used that kind of language.