Complex sentence: He made his first recording, "Look Out Mabel", on which he was credited as G. Davy Crockett to cash in on the Davy Crockett craze of the period, in late 1957, for the Chief label owned by Mel London.
Split into simpler sentences: He made his first recording, "Look Out Mabel", on which he was credited as G. Davy Crockett to cash in on the Davy Crockett craze of the period. It was issued in late 1957, on the Chief label owned by Mel London.