you have mentioned a list of singers; is the first one related to any band?
Yes. The Famous Flames
Introduction
He first came to national public attention in the mid-1950s as the lead singer of The Famous Flames, a rhythm and blues vocal group founded by Bobby Byrd. 
how much did the blues brothers movie cost to make More than $17.5 million who directed it? John Landis who did its background score? By rhythm and blues (R&B), soul, and blues singers James Brown, Cab Calloway, Aretha Franklin, Ray Charles, Chaka Khan, and John Lee Hooker who starred in this film? John Belushi and Dan Aykroy what is this r&b refers to? Rhythm and blues,  is a genre of popular music that originated in African American communities in the 1940s and the next one of r&b? Soul music is a popular music genre that originated in the African American community throughout the United States in the 1950s and early 1960s
Yes, The Famous Flames. Yes, Famous Flames is one of the bands. Yes - The Famous Flames.
James Brown James Brown James Brown
Introduction 1953–1961: The Famous Flames Introduction

Brown began his career as a gospel singer in Toccoa, Georgia. He first came to national public attention in the mid-1950s as the lead singer of The Famous Flames, a rhythm and blues vocal group founded by Bobby Byrd. With the hit ballads "Please, Please, Please" and "Try Me", Brown built a reputation as a tireless live performer with the Famous Flames and his backing band, sometimes known as the James Brown Band or the James Brown Orchestra. His success peaked in the 1960s with the live album "Live at the Apollo" and hit singles such as "Papa's Got a Brand New Bag", "I Got You (I Feel Good)" and "It's a Man's Man's Man's World".  The group had already gained a reputation as a good live act when they renamed themselves the Famous Flames. Brown began his career as a gospel singer in Toccoa, Georgia. He first came to national public attention in the mid-1950s as the lead singer of The Famous Flames, a rhythm and blues vocal group founded by Bobby Byrd. With t
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James Brown [SEP] Introduction
He first came to national public attention in the mid-1950s as the lead singer of The Famous Flames, a rhythm and blues vocal group founded by Bobby Byrd. With the hit ballads "Please, Please, Please" and "Try Me", Brown built a reputation as a tireless live performer with the Famous Flames and his backing band, sometimes known as the James Brown Band or the James Brown Orchestra. His success peaked in the 1960s with the live album "Live at the Apollo" and hit singles such as "Papa's Got a Brand New Bag", "I Got You (I Feel Good)" and "It's a Man's Man's Man's World".