Rocker Dave Grohl has clarified comments he made at a weekend festival suggesting the Foo Fighters are set to split, insisting he and his bandmates are simply embarking on a musical hiatus so they can focus on other projects.

The frontman fuelled fresh speculation about the band's future on Saturday (29Sep12) when he said goodbye to fans after a lengthy world tour during the Foo Fighters' set at the Global Citizen Festival in New York's Central Park.

A representative for the Best of You hitmakers has since dismissed rumours of a break-up and now Grohl has weighed in to put an end to fans' fuss with a lengthy post on the band's page, in which he insists he will "never" quit the group.

The former Nirvana drummer writes, "Just wanted to write and thank you all again from the bottom of my heart for another incredible year. (Our 18th, to be exact!) We truly never could have done any of this without you...

"Never in my wildest dreams did I think Foo Fighters would make it this far... There were times when I didn't think the band would survive. There were times when I wanted to give up. But... I can't give up this band. And I never will. Because it's not just a band to me. It's my life. It's my family. It's my world."

He then addressed the remarks he made on Saturday: "Yes... I was serious. I'm not sure when the Foo Fighters are going to play again. It feels strange to say that, but it's a good thing for all of us to go away for a while. It's one of the reasons we're still here. Make sense? I never want to Not be in this band. So, sometimes it's good to just... put it back in the garage for a while..."

And Grohl reveals he will be using his hiatus to complete upcoming documentary Sound City, about the legendary California recording studio, and work on an accompanying album, which he claims could be "the biggest, most important project I've ever worked on".