Quartet.
The noun for a four person singing group or musicians is a quartet.
A group of seven musicians - or indeed, any group of seven things - is a septet.
a quintet
A quartet.
Nonet.
The rangitawa four
Van Morrison is an individual singer, not the name of a group
the urewrea four
The Beatles originally and most famously, although it has been applied ironically to many groups consisting of four members since then.This nick name was given to the Beatles.
there's no name for that.EDIT: Actually - a group of eight musicians is called an Octet ! Snakester1962 (Supervisor)
Alan Caddy George BellamyRoger JacksonHeinz BurtClem Cattini
The general name given to the elements of Group IA (1) is alkali metals.