I was fortunate to be given a big box of 45's from my drummer with tons of old doo-wop, mo-town, and early rock. Pride of the collection is an original Kingsmen "Louie Louie" with "Haunted Castle" on the B-side.
also Buddy Holly Peggy Sue on Coral records, and The Chantelles "Maybe".
Honorable mention because they are tot 45's but just 7", but Shannon & The Clams "Hunk Hunt" and Mosquito Bandito "One Man Bandit" have been getting lots of play from me recently