She has a reputation as being a fiercely talented live performer.

So fans at Rihanna’s Singapore Grand Prix concert on Sunday were expecting the very best in showmanship.

But according to Radar Online, many were left disappointed by the 25-year-old’s efforts, complaining that she was not only lip-synching to her hits, but was also ‘high’.

Rihanna was performing at the Formula 1 event after a colourful few days in Thailand where she was criticised for both posing with an endangered primate and visiting a live sex show.

She was probably hoping her luck would change once she left the country.

It’s not the first time she has been accused of lip-synching.

Organisers of Scotland’s Tea in the Park Festival last July were forced to defend her after it emerged she relied on a backing track.

Yet even if she did lip synch in Singapore on Sunday she still managed to cause a stir with her flamboyant and risque performance.