Song written by Buddy Holly, first released in 1959. This is a version played by The Beatles during their BBC appearences, and now included in their 1994 album Live at the BBC, with George doing the vocal part.
I play here John's rhythm guitar part, with some bits by George (the intro and first half of the solo). See the chord names in the annotations; note the addition of the 4ths in the A and D chords.