In April 1974, Swedish supergroup Abba won the Eurovision Song Contest with its smash hit Waterloo and, to mark the 50th anniversary, we’re looking back on its influence.

Earlier this month, band member Bjorn Ulvaeus made a guest appearance at Abba-inspired show Mamma Mia’s 25th anniversary in London’s West End, saying he felt “humbled” by its continued popularity.

He said: “Somehow Abba has managed to touch so many millions of lives around the world, generation after generation. And people ask me ‘How does it feel for you to know that?’ and that’s a very tough question and very hard to answer.”

The band - Bjorn, Benny Andersson, Agnetha Faltskog and Anni-Frid Lyngstad - triumphed in Brighton on April 6 and the musical show featuring its best loved songs premiered in London on the same day in 1999.

There must have been countless tribute acts over the years and our main picture shows one of them, Waterloo - The Best of Abba, who performed at the Carnegie Theatre in Workington.

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Another image shows the same group - who bear a remarkable similarity to the originals - at the keyboard.

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In 2014, Copeland schools took part in a country dancing event in Whitehaven’s Sports Hall and pupils from St Benedict’s chose to perform to Abba. Pictured are Olivia Butterworth, Shania Pattinson, Nicole Gair and Laureece Woodall.

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To mark the 40th anniversary of the Eurovision win, Abba Reunion sang some of the group's best-loved hits in the Buccleuch Centre in Langholm.

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When Mayfield School was looking for inspiration for its 2014 show, Abba was the obvious choice. Pictured looking magnificent are some of the cast members, along with student Ellie-Jane Kelly and staff member Judith Usher.

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Appearing at Ladies’ Night at Carlisle Racecourse in 2010 was Bjorn Again but when Angela Woodward, 44, from Currock, Carlisle, was asked if the band itself should go on tour she said it shouldn’t.

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In the same survey, in 2016, Craig Ross, 35, from Wetheral, said, “Yes, why not?”