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 perform a variety of music for recordings and live audiences. They audition for positions in choruses, orchestras, bands, plays, and other types of music groups. They may also play instruments along with singing. Often times singers promote themselves through websites, photoshoots, social media, and interviews.