Two of the most collectible forms of Rock N Roll are Doo Wop and Rockabilly. In 1951, one of the earliest Doo Wop groups, the Orioles, recorded “It’s Too Soon to Know” for Jubilee Records. A copy can now sell for $2,500.00. In 1956, Sun Records released “Defrost Your Heart” by Rockabilly artist, Charlie Feathers. An original copy is worth up to $1,500.00 today.