Almost everyone can spot the best guitar solos of all time. But to spot the best guitar duels, that’s another level of music fandom very few qualify for. Which is a shame, as guitar duels are a ...

Last Night on Late Night: Conan Curses on Air, Duels Jack Black on GuitarPlus, David Letterman conducts a most epic assault on a Christmas tree, on our regular late-night roundup.