From today's The Olde Disc Jockey's Almanac...
July 6, 1957…John Lennon and Paul McCartney were introduced to each other at a church social where Lennon's band, the Quarrymen, was playing. In the church basement between sets, 15-year-old McCartney taught 16-year-old Lennon to play and sing Eddie Cochran's, "Twenty Flight Rock" and Gene Vincent's "Be-Bop-A-Lula." Lennon was also impressed when McCartney showed him and the group's Eric Griffiths how to tune their guitars, something they had been paying someone else to do for them.
Found this video of a live performance of "Be Bop A Lula"
