Baboomska mcGeesk sez, "In 1956, Buddy Holly traveled to Nashville to record several songs. One of the songs he recorded was "That'll Be The Day", but the producer assigned to his sessions (Owen Bradley) hated rock n' roll, and did a terrible job on the song. After that, Buddy traveled to New Mexico and re-recorded "That'll Be The Day" (the version that became the monster hit) at a different studio with his own (superior) arrangement, but according to his contract with Decca, he couldn't release it, because Decca owned all rights to his music. He decided to call Decca, to try reason with them, and he secretly taped his conversation. They refused to give him the rights to his own song, but he went ahead and violated his contract. Here is the conversation he secretly taped."
Buddy Holly - The Phone Call (Thanks, Baboomska!)