Elvis made an informal recording of ‘Apron Strings’ while in the Army.
Written by George David Weiss & Aaron Schroeder.
First recorded by Billy The Kid (aka David Hill), 12 January 1959. Released on 2 February 1959, on Kapp K-261X, with ‘I Hardly Know Me’ as flipside.
https://youtu.be/_rew1AIcMaU
Billy The Kid’s ‘Apron Strings’ wasn’t a success; it just made the Billboard Hot 100, where it stayed for 2 weeks (peak position #92). It got a minor review in Billboard, 2 Feb 1959:
Other early recordings:
Jay B. Loyd also recorded the number for Hi Records, backed by Bill Black's Combo, but his version wasn’t released for many years.
Cliff Richard recorded it in April 1959, releasing it as the B-side of ‘Living Doll’.