We initially mistook this headline to mean that the couple were seaching the lyrics of Blues songs for appearances of Bigfoot.  Cue Harry James' "Feet Draggin' Blues," but not Blind Lemon Jefferson's "Stocking Feet Blues" (because Bigfoot goes barefoot).  Bob Marley sang, "Your feet is just too big for your shoes."  The old folk song "Ol' Virginny Never Tire" mentions how "the hollow of her foot makes a hole in the groun'."  There's an old folk rhyme about "Johnny Bigfoot" who would have to kick two cows out of their skins to have shoes that fit.  The Ink Spots sang how "there were four of us: me, your big feet, and you."  Then there's the Moody Blues, who sing of how "the earth shook under my feet."  Johnny Cash's "Big Foot" is about a different Bigfoot—the Miniconjou chief.  We're little acquainted with the Blues genre, so no dount many more Sasquatches are lurking in those sonic realms.  Someone should write a book about how Bigfoot hides in music.