A choir is a group of people who come together to sing. You can chose to be a soprano, alto, tenner or base in a range from high to low. You can join a choir at most schools and go to camps to sing and other events. If you try hard enough you could be famous singer one day.
Some people prefer to sing sing solo instead of being in a group. You can perform solo at many events.
Taylor Swift - We Are Never Ever Getting Back Together