The video below has clocked up over 25 million views since it was posted on YouTube late in late July.

The project kicked off in spring 2014, when Fabio Zaffagnini and several friends were looking for “a mad idea” to convince the band to come to Cesena, in the Emilia-Romagna region, to play for them.

After a year's planning, 1,000 fans met up in a park in the city on July 26th to thrash out the song on drums, guitars and microphones, belting out the hit tune together as the sun set.

“One thousand people, one thousand rockers, come at their own cost from all over the country, for a single song, your song,” Zafagnini says at the end of the video.

The video went viral, clocking up over five million views within a couple of days, but it took a little time before lead singer Dave Grohl actually watched it.

“I’ll never forget that day that my phone was flooded with texts from friends, all saying “Have you seen this???”, “Amazing!”, “So insane!” with an anonymous YouTube link attached,” he said in a post on his Facebook page on Thursday.

“Assuming it was just another “CAT GETTING STUCK IN A PAPER BAG” video, I didn’t bite at first, but after the 10,000th message, I clicked the link and was absolutely blown away by what I saw.”

The band will play on November 3rd at Carisport Cesena.

“To see so many people put so much time, and effort, and love into making music moved me to tears,” continued Grohl, adding that the band is looking forward to this “incredible experience”.

The Cesena gig kicks off the band’s European tour. Click here for tickets and gig information.