ABBA's Björn Ulvaeus surprises fans as he joins Jane Moore at Mamma Mia's 25th ... trends now

ABBA's Björn Ulvaeus surprises fans as he joins Jane Moore at Mamma Mia's 25th ... trends now
ABBA's Björn Ulvaeus surprises fans as he joins Jane Moore at Mamma Mia's 25th ... trends now

ABBA's Björn Ulvaeus surprises fans as he joins Jane Moore at Mamma Mia's 25th ... trends now

ABBA's Björn Ulvaeus surprised fans as he attended Mamma Mia's 25th West End anniversary and the band's 50th on Saturday. 

The Swedish musician, 78, looked smart in a teal blazer with matching trousers and a black T-shirt for the event. 

Posing for photos with Jane Moore, he was also joined by Zoe Ball, her daughter Nelly and the show's producer Judy Craymer. 

Zoe presented ITV competition Mamma Mia! I Have A Dream, which saw 14 West End hopefuls battle it out for leading roles in the stage show. 

Mamma Mia tells the Sophie of bride-to-be Sophie, who invite's her mother Donna's three exes to her wedding in the hope of discovering which of the men are her father.

ABBA's Björn Ulvaeus surprised fans as he attended Mamma Mia's 25th West End anniversary on Saturday

ABBA's Björn Ulvaeus surprised fans as he attended Mamma Mia's 25th West End anniversary on Saturday

The Swedish musician looked smart in a teal blazer with matching trousers and a black T-shirt for the event as he joined Jane Moore

The Swedish musician looked smart in a teal blazer with matching trousers and a black T-shirt for the event as he joined Jane Moore

Set on an idyllic Greek island, the heartwarming tale is accompanied by a plethora of Abba's biggest hits including Waterloo, Dancing Queen, The Winner Takes It All and of course Mamma Mia.

The musical was adapted into a film in 2008, which starred Meryl Streep, Amanda Seyfried, Pierce Brosnan and Colin Firth and Julie Walters.

Meanwhile, the London stage show has been watched by more than nine million people throughout 440 cities around the world.

It originally opened at the Prince Edward Theatre on 6 April 1999, before transferring to the Prince of Wales Theatre in 2004, before finally settling into its current home in 2012.

It comes after ABBA thanked fans in a rare statement as the band celebrated the 50th anniversary of their Eurovision Song Contest victory.

The iconic 70s pop group - made up of Bjorn Ulvaeus, Benny Andersson, Agnetha Faltskog and Anni-Frid Lyngstad - remain the show's most famous and successful exports after they were crowned winners in April 1974 with their song, Waterloo. 

Reflecting on the milestone, the group, who later split in 1982, issued a joint statement as they expressed their gratitude for fans 'steadfast loyalty and support through the years'. 

To mark the anniversary, several pianos across Europe will play a pre-recorded by Benny simultaneously to make it sound as though he is playing live. 

Posing for photos he was also joined by Zoe Ball, her daughter Nelly and the show's producer Judy Craymer

Posing for photos he was also joined by Zoe Ball, her daughter Nelly and the show's producer Judy Craymer

Stevie Doc (left), who plays Sophie in the Abba-inspired show, and Mazz Murray (right), who plays Donna were also present

Stevie Doc (left), who plays Sophie in the Abba-inspired show, and Mazz Murray (right), who plays Donna were also present 

Sharing a picture of the foursome winning the accolade, they wrote: 'It's slightly dizzying and deeply humbling to think that millions of you who saw us for the first time in the Eurovision final 1974 have passed our music on not only to one generation, but to several.

'We see evidence of that every time one of us visits Abba Voyage in London, and it's because of this we can celebrate the 50th anniversary of that event in the knowledge that our songs still resonate around the world.'

They continued: 'It's difficult to comprehend that 50 years have gone by since the four of us waited backstage for the verdicts of all the juries around Europe at the Dome in Brighton. 

'So what were out dreams during those suspenseful moments or in the chaos in the aftermath of the victory we had secured with the smallest margin in Eurovision history?

'Four different dreams, no doubt, but whatever they were, however grand, reality has surpassed them, that's for sure.'

The group went on to have a huge repertoire of hits including Dancing Queen (1976), Gimme! Gimme! Gimme! (1979) and Super Trouper (1976) to name a few. 

Since their split their

read more from dailymail.....

NEXT Coronation Street's Brooke Vincent breaks down in tears as she experiences 'mum ... trends now