RiRi leaves fans waiting for 2 hours

Rihanna left her fans waiting for two hours as she turned up late at a concert.

The 25-year-old singer, who had to take to the stage in Birmingham the next night, stayed up late into the night with pal Cara Delevingne, the Sun reported.

The duo was seen partying at Boujis nightclub with Rihanna's brother Rorrey and her assistant Melissa Forde until 3am.

The star left her London hotel with her brother the next day to head up to Birmingham and had to face a lot of criticism from fans, who waited for her for so long.