约翰·丹尼尔·萨姆纳 J.D. Sumner

In 1962, J. D. Sumner became the manager of the Stamps Quartet, and three years later, he left the Blackwood Brothers to sing with them. Sumner was most noted as the leader of the Stamps Quartet, which became known as J.D. Sumner & The Stamps. Elvis Presley, while as a teenager, idolized Sumner's singing after seeing him perform with the Sunshine Boys. Presley hired Sumner & The Stamps as his back-up singers in 1971. The group toured and recorded with Presley from November 1971 until Presley's death in 1977. He not only sang at Elvis' funeral but had previously sung at the funeral of Elvis' mother, Gladys, in 1958.[4] JD and The Stamps opened for Jerry Lee Lewis in 1980 in the United Kingdom, The Stamps only overseas performance.

From:https://en.wikipedia.org/wiki/J._D._Sumner#The_Stamps_Quartet