Some black male singing groups of the 50's include The Earthquakes. Another black male singing group of the 50's is Frankie Lymon and the Teenagers.
a bass is the lowest male singing voice.
Kanye=Kent=
Idris Elba
Yes, 'Stag'.
roebuck
The most common male singing voice would be tenor, followed by baritone.
umm Boys II Men maybe or the one that starts with a c and Lionel Richie was in... oh yes... The Commodores
Tenor and bass.
tenor
Bass.
sapreno