Elvis Presley "Mystery Train/ I Forgot to Remember to Forget" Sun Single (Sun 223, 1955). Beautiful copy of Elvis' fifth and final Sun release, which produced his first #1 hit ("I Forgot..." hit the top of on Billboard's Country charts) and his first double-sided hit ("Mystery Train" got to #11). Both achievements would be repeated many times over the next two decades on multiple Billboard charts - Country, Pop, R&B, and Adult Contemporary. Condition: NM 8 (with a small tear on the "I Forgot..." side).