Hone your singing ability. Sign up for voice lessons if you have never been formally trained. A voice coach can teach you the best way to sing while maintaining good vocal health.
Learn to play an instrument such as the piano, guitar or drums (which are predominant in gospel music) if you don't already play an instrument. Being able to play an instrument makes you a more versatile musician and more valuable to groups seeking people who have multiple talents.
Sing in public as often as possible. People need to hear you to know about your talent. Singing in churches is a good place to network with other people who are involved in gospel music.
Attend gospel music functions, events and concerts. This also will help you to network.
Listen to a wide range of gospel music so that you will be familiar with the style.
Consider your personal religious beliefs. Gospel music is religious in nature. A gospel group may be looking for backup singers who share their religious beliefs.
Learn to read music. Though this skill is not necessarily required, it will make you a more skilled vocalist. Backup singers usually sing harmony, which are the notes that support the melody line.