SINGER Katy Perry’s failure to recognise the Scottish flag at Glastonbury has left her being ridiculed on social media.

During her performance on the Pyramid Stage at the festival, the 32-year-old pointed out a Scottish Saltire and described it as the “blue flag with the X”.

She said: “I can see all of you. Even that security guard in the neon. Way in the back by that blue flag with the X.”

And of course her blunder saw an immediate reaction online as Scots took to Twitter to point out that it was the Scottish flag.

Gary Leitch said: "I'm assuming u didn't pass Geography..."the blue flag with the X" AKA the Scotland flag."

Hazel Dickson added: "The blue flag with the white X is Scottish. We're Scottish. Scotland is a separate country. Wiki is your friend."