From 2004, please enjoy the great Roger McGuinn and his lovely cover of The Beatles/George Harrison classic "If I Needed Someone."
I honestly had never heard this until yesterday, when friend of PowerPop Capt. Al played it on his intertube radio show.
I should add that George was obviously a huge Byrds fan (the riff on this is pretty much a lift from "Bells of Rhymney") and there's a wonderful, if perhaps apocryphal, story about George and Roger that seems relevant.
The short version is that after The Byrds' "Turn Turn Turn" came out, and was not as big a hit in the UK as it was elsewhere, George apparently sent Roger a note that said "I feel sorry for anybody who didn't buy it."