Pop star Rihanna's reps deny any hooking up between her and Justin Bieber. Recently in Life and Style magazine it claimed that Rihanna and Bieber hooked up while Bieber was with on and off again girlfriend Selena Gomez. But Rihanna's reps said that the two have never hooked up and that is crazy that people would even think that. Bieber's reps have also commented saying the accusations are also false.