Camilo Blanes Cortés (16 September 1946 – 8 September 2019), known professionally as Camilo Sesto "El Rey del Amor", was a Spanish singer, songwriter and music producer. There are various sales figures for him, ranging from 70 to 200 million records sold, and the singer himself claimed to have sold more than 175 million records. However, his official sales would represent around than 2.8 million copies worldwide, including nearly 900,000 certified.

Source: Wikipedia (https://en.wikipedia.org/wiki/Camilo_Sesto)