The British weather has finally done more damage than just make us moan/get rather soggy - causing Hit Factory Live tomorrow night to be cancelled.
A statement from organisers today read: "Following the severe and unprecedented weather conditions across the country the site was declared unfit this morning to host the concert.
"The decision was made following full consultation with all of the relevant authorities and the safety advisory group."
But John Probyn COO of Live Nation assured festival goers that other Hyde Park events, including Hard Rock Calling - which is being headlined by Bruce Springsteen - this weekend, were going ahead as planned.
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He said: "The moment the Wireless Festival ended, we put in place a massive plan to prepare the site for tomorrow.
"Eight thousand cubic metres of wood chip is currently being put in place and over the past 24hours crews have started to make the site safe for our customers.
"Despite best efforts time has beaten us, but I want to reassure that Hard Rock Calling concerts with Soundgarden, Bruce Springsteen and Paul Simon, plus Madonna on 17 July and the BT London Live Opening Ceremony Celebration concert and the events will go ahead."
This afternoon Kylie tweeted her disappointment at the news. Her social media team posted:
"Team Kylie and Kylie herself are very disappointed that @PWLHitFactory has been cancelled."
And a statement on her website read: "I am so sorry to hear that the concert tomorrow had to be cancelled.
"I feel for all the fans who had bought tickets to this special event. Jason and I were rehearsed and excited to share this moment with everyone."
Just yesterday the Aussie star had tweeted a picture of herself and Jason Donovan in rehearsals for Hit Factory Live yesterday with the caption: "Rehearsals with gorgeous @JDonOfficial for @PWLHitFactory"
The one-off gig, which was also was set to include appearances from Sinitta, Steps and Bananarama had been arranged by Pete Waterman as a way of marking the 25th anniversary of the PWL record label.
Pete told the BBC he was "more than disappointed" by the news the concert could not go ahead.
One disgruntled fan told Yahoo! omg!: "This is such a devastating blow for PWL fans. The likes of myself have waited for 23 years to see Kylie and Jason perform together again.
"I hope they manage to reschedule so we get the chance to see the likes of Sonia, Sinitta and Bananarama back on stage."
"I found out the concert was cancelled literally 10 minutes after buying wellies to go along to the show.
"I was prepared to brave heavy showers to see Kylie and Jason back on stage together again. This news is devastating."