A duo or duet.
Three people singing together is called a trio. It is also called like that for instrumentalists!
Four people singing is often called a quartet.
A duet Is what two people singing together is called.
A duet Is what two people singing together is called.
The people watching are called an audiance. The people singing/playing are called preformers.
Two people singing together is known as a Duet.
A quartet
The people watching are called an audiance. The people singing/playing are called preformers.
Quartet.
quintet
it's called a triple trio
It is called a Septet, sometimes spelled Septette.