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. Singers may choose to specialize in a particular vocal style like jazz or opera, while others perform in a variety of styles. Some singers become background singers supporting a lead singer. Opera singers act out a story by singing and may perform in different languages. Sometimes singers write their own music to perform and record.