Crooner (noun)

1. A male singer who sings in a soft, sentimental style.
2. A singer who sings popular ballads, typically with a smooth and emotional style.

Origin:

Early 20th century: from the phrase croon a tune.

Examples:

1. Frank Sinatra was one of the most famous crooners of all time.
2. Bing Crosby was known for his smooth crooning voice.
3. The crooner sang love songs in a low, mellow voice.
4. The crooner had a style that was popular in the 1920s and 1930s.
5. The crooner's music was often played on the radio and at dance halls.