Ahem. From Trent Reznor to Billboard to Bonnaroo to Letterman (almost!) to Toronto, Grizzly Bear are just about everywhere these days. Until Friday, they'd never been to Jimmy Fallon. For their debut they conjured up a beautiful take on Veckatimest standout "Cheerleader." You might've caught the song live on Spinner, but there was something more urgent and soulful about this ...