Curt Kirkwood rekindles an old harmonic partnership with Rufus Leaking on “Backwater.” Rufus’s a solid hype dog through the first verse, and at the very least knows the lyrics through the hook and verse two. Ends on a sad note, though; all’s not fair in love and puppetry. Poor Ruf. But at least, he’ll always have Jack ‘n’ Meg, and that’s more than most headed ACL this weekend can say.