Mohammad Aziz wasn’t just a first-copy version of Mohammad Rafi. That would be unfair to the artist he was. Aziz was the first-copy version of all the actors he sang for: He was Govinda’s pelvic thrust, Mithun Chakraborty’s swagger, Rajesh Khanna’s ham, Amitabh Bachchan’s buffoonery. He was all that they were or wanted to be.
Source: www.arre.co.in/bollywood/mohammad-aziz-hindi-cinema-1980s/