The crossword solutions for the term DIAMONDS SINGER SMITH are SAM, which is a 3 letter acronym for the singer Sam Smith. Sam Smith is an English singer-songwriter who rose to fame in 2014 with the release of his debut studio album 'In the Lonely Hour'. He has since released two more albums and won multiple awards, including four Grammy Awards. His most successful single, 'Stay With Me', reached number one in the UK and US charts.