The Big Reunion stars Atomic Kitten were to be teaming up with nineties and noughties pop acts for a UK arena tour, but this has now been axed due to "unforeseen circumstances".
All Saints were due to headline the 'Another Time, Another Place' tour, which was also set to reignite the careers of Big Brovaz, Let Loose and Jenny Breggren from Ace Of Base.
Details of the tour were released earlier this month, on the back of the current thirst for nineties and noughties acts thanks to hugely successful ITV2 series The Big Reunion.
The eight-date arena tour would have travelled across the UK starting with a night in Cardiff on Friday 14 November, culminating in Birmingham on 23 November.
However, Ticketmaster has now listed all the dates as cancelled, while the tour's official website has been shut down.
The bands have, at time of writing, not yet reacted on Twitter.
All Saints, consisting of Melanie Blatt, Shaznay Lewis, and sisters Natalie and Nicole Appleton, reunited late last year and have recently wrapped up supporting the Backstret Boys on tour.
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Watch the video for Atomic Kitten's single 'Right Now' below: