well that depends on what their music sounds like and how good of a singer they really are
Lady Ga Ga
sounds like Do, a Dutch singer
Sounds like Brandi Carlile.
This is my opinion but I believe that the singer from ABBA, Anni-Frid "Frida" Lyngstad sounds a lot like Karen Carpenter.
sounds like Jaume Aragall
An old dog
Vinny Miranda
bob
Elvis
Paolo Nutini He sounds like Cat Stevens.
Johnny Reid sounds like Russell Watson