Years ago, I downloaded a relaxed-tempo, acoustic version of "Everlong" by the Foo Fighters, that was fantastic. I lost it when my stupid, proprietary NAS decided to re-initialize both RAID disks. I've searched repeatedly, but all that ever comes up is Dave Grohl's solo performance on The Howard Stern Show.
Although the song is normally performed with electric guitars, vocalist/guitarist Dave Grohl's solo acoustic variation gained popularity after an impromptu rendition on Howard Stern's radio show in 1998.[19] The band has performed it acoustically since then and an acoustic performance concludes their 2006 live CD and DVD Skin and Bones. Additionally, an acoustic version was released on Foo Fighters' 2009 Greatest Hits album.
The very first hit I get on YouTube is for the Greatest Hits version. Is that it?
Thanks, no, that's not quite it. I remember that it was slightly swing-y, with a bit of a Postmodern Jukebox feel. I'm pretty sure it was the Foo Fighters, but it occurs to me that maybe it was a cover by another group, but I'd have no idea who.