Singing is an art form in both public and private schools. Karaoke, for example, can be a fun hobby and a kind of casual entertainment. A record label may hire a professional singer and pay for the production and recording of their work. Other companies, such as radio advertising corporations and variety show theaters, may hire singers. Singers sing in recording studios or for live audiences in a variety of settings. Many professional singers have the ability to perform in a variety of styles like rock, classical, jazz, country, opera, or hip-hop. Though you can hear professional singers on the radio, you can also be a professional singer in a Broadway play, sing for commercial jingles, or even entertain on cruise ships.
