JJ Grey & Mofro brings swampy swagger to The Ritz Ybor + Owen, The Legendary Shack Shakers & more of this week’s best upcoming concerts

THURSDAY, DECEMBER 29Owen w/Fake Problems/John Allen “But I’m killing time in a ghost town / Dim lights and dull sounds / This is what it’s like to be dead and leave behind little more than a stain in the carpet,” Mike Kinsella sings in “Everyone’s Asleep in the House but Me,” his insomniac narrator pondering…