They perform in a variety of places. Most often they work at bars, nightclubs, theaters, and outdoor concerts. Singers generally perform at night and on weekends. They practice and attend rehearsals during the day. Few have steady singing jobs and most experience some unemployment.
Many singers have a second of job that is more steady.
A singing career depends on a good voice, physical stamina, and public acceptance. Singers may travel extensively. Very few singers make recordings or go on concert tours. A somewhat larger number of singers get leading or supporting roles in operas and popular music shows. Many singers work part time in church and synagogue choirs or give singing lessons.