Written and first recorded by Hank Williams (C&W #1 1951).
Other hit versions by Dinah Washington (R&B #3 1951), Tony Bennett (US #1 1951).
From the wiki: “Hank Williams wrote ‘Cold Cold Heart’ after visiting his wife, Audrey, in the hospital where she was recovering from an illegal abortion. The flowers he brought her were thrown back in his face. ‘You sorry son of a bitch,’ she is claimed to have said. ‘It was you that caused me to suffer this.’ Hank went home and said his wife had a ‘cold, cold heart.’ Audrey shut him out of her life, and filed for divorce on January 10, 1952. The melody to ‘Cold, Cold Heart’ was taken from ‘You’ll Still Be In My Heart’ (1945), by T. Texas Tyler (who also wrote ‘My Bucket’s Got a Hole in It’). The copyright case was settled out-of-court, after Hank’s passing, in 1955. Dinah Washington and Tony Bennett both recorded adaptations of ‘Cold, Cold Heart’ in 1951, helping Country music out of its rural isolation with additional success on both the R&B and Pop charts.”
Dinah Washington, “Cold, Cold Heart” (1951):
Tony Bennett, “Cold, Cold Heart” (1951):