Final answer:
Crooners were not people who stole music for personal gain, but rather singers who achieved popularity with their smooth and mellow singing style.
Step-by-step explanation:
False. Crooners were actually singers who achieved popularity in the early 20th century by singing sentimental songs. They were not known for stealing music for personal gain. In fact, crooners were known for their smooth and mellow singing style, and some of the most famous crooners include Bing Crosby and Frank Sinatra.