"Ballad of Sir Frank Crisp" George Harrison, How I Met Your Mother

I haven't fully emerged myself into Harrison's All Things Must Pass. I'd say I've put a fabulous effort into the first disc, but it's the second one I've really overlooked (along with Disc Two of The Beatles). 

But it was in watching How I Met Your Mother's most recent episode "Challenge Accepted" that got me really onto the song "Ballad of Sir Frank Crisp" that boasts the lyrics "Let it roll" prominently throughout the song.