Denver-based folk-rock group the Lumineers brought all their whooping, yelping, clog-dancing charm to the table as they made their debut as musical guests on Saturday Night Live last night. They started off with their foot-stomping hit, “Ho Hey,” which featured heavily in the trailer for host Jennifer Lawrence’s film Silver Linings Playbook. For the second set, they returned with a cello to play “Stubborn Love,” another song off their Grammy-nominated debut album, The Lumineers, which the band self-released in April. Russ B