Party of four: Rihanna and Katy Perry enjoy cosy double date after the MTV awards

By GEORGINA LITTLEJOHN Newlyweds: Katy Perry and Russell Brand arrive at an Italian restaurant where they met R&B singer Rihanna and her boyfriend Matt Kemp for dinnerShe was believed to have had a massive falling out with Rihanna after she missed her wedding to Russell Brand.But Katy Perry is clearly the forgiving kind as she and her new husband joined her best friend and her boyfriend for a