Beyonce made Princess Eugenie of Britain turn “bright-red” at a concert this week.

The pop superstar is currently in London performing shows as part of her The Mrs. Carter Show World Tour.

Princess Eugenie was in attendance at one of the performances.

While Beyoncé sang Irreplaceable the star walked around stage and interacted with the audience. As she often does, Beyoncé put the microphone in front of a few fans’ faces so they would belt out lyrics.

Princess Eugenie was one of these fans, but unfortunately words did not come out of her mouth when Beyoncé was before her.

After the musician sang “To the left, to the left” the royal was unable to mimic the phrase.

“It was hilarious – Eugenie was on the front row with Kate Middleton’s brother, James, and his new girlfriend, Donna Air, plus designers Matthew Williamson and Patrick Cox,” a source told British newspaper The Mirror.

"She was really excitable and filming the whole thing on her iPhone like any other fan.

“Beyoncé clearly didn’t recognise her so when it came to Irreplaceable, and the part where she picks on an audience member to join in with her, she simply chose the first woman she could reach.

“When Eugenie, who had gone bright-red, ducked down, Beyoncé was forced to quickly fill in the missing words and find a new, willing victim.

“All Eugenie’s friends were teasing her about her stage fright for hours afterwards.”