Adele says she is keen to reduce the amount of swear words she uses on stage.

The singer told fans at a recent show at Los Angeles' Staples Center that she cussed over 30 times when performing at this summer's Glastonbury Festival.

It seems her hefty swear-count has encouraged her to clean her mouth a little.

Adele said on stage: "I managed to swear 33 times. 33 times.

"I mean I’m not a mathematician - I didn’t even pass my exams and that - but that’s like every couple of minutes, swearing, right?

“I’m trying to powder my tongue a little bit and not swear so much.”

However, Adele later said during the gig: "Well, f***ing hell, I love teachers - they’re so important in our lives."

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Watch Adele on stage at Glastonbury below: