She's a world wide superstar with plenty of pulling power, but whether she's worth £30,000 for just an hour-long appearance is debatable.

However, that is how much Rihanna, 22, is alleged to have been paid to show her face at Liverpool's seven-star club Bambooo over the weekend.

After performing at the city's Echo Arena, she headed down to the venue where she spent just an hour before heading back to her tour bus to make her way to London. And Rihanna isn't the first US star to have allegedly received such a large sum from the owners of the plush new venue.

In March this year rapper 50 Cent helped open the club, receiving a reported £50,000 for his appearance.

Fans who attended the opening had expected the star to perform one or two of his songs, instead he merely greeted the crowd with a simple “Hey” before indulging in the magnums of champagne laid out for him and his entourage. On Friday Rihanna wowed fans as she kicked off her UK tour in Birmingham, despite being over an hour late.

The star finally made it on to the stage at the LG Arena more than an hour after she was expected to start the show.

But at least Rihanna had a good excuse for being late -- she is said to have spent the time searching for a makeup mirror in her dressing room.