A Duet
A group of four musicians or singers are called a quartet. A group of five musicians or singers are called a quintet.
Three Dog Night had their first four chart hits in 1969...two male lead singers
They can be called an ensemble, a choir, or a group.
Whatever they want it to be they get to choose
A group of four singers is also known as a quartet.
In music, a quartet is an ensemble of four singers or instrumental performers. In pop music they would be a "group".
Id call them a musical group or 'band'.
A Duet
Choir, harmony
It is called a choir or a band
A group of four musicians or singers are called a quartet. A group of five musicians or singers are called a quintet.
A duet
a vocal quartet
One of the four singers from the 1990s music group Color Me Badd.
A group of singers is known as a choir.
The Mormon Tabernacle Choir