Who are some of the black singing groupsin the 40s and 50s?

Some notable Black singing groups from the 1940s and 1950s include The Ink Spots, known for their smooth harmonies and unique blend of pop and R&B, and The Mills Brothers, who gained fame with their vocal harmonies and innovative sound. The Platters also emerged during this period, achieving major success with hits like "Only You" and "The Great Pretender." Additionally, The Ravens were influential in the development of rhythm and blues, paving the way for future vocal groups.