The two crossword solutions for the term 'First Name in Singing' are Ella (4 letters) and Yma (3 letters). Ella is a reference to Ella Fitzgerald, an American jazz singer who was one of the most popular and influential vocalists of the 20th century. She was known for her improvisational scat singing and her ability to span multiple genres. Yma is a reference to Yma Sumac, a Peruvian soprano who was known for her extraordinary vocal range. She was one of the most famous proponents of Incan music and culture, and her recordings were popular in the 1950s.