Elvis Presley is probably the most important figure in American pop music in the 20th century. Although he is not necessarily the best, it is indisputable that he made rock music popular all over the world. From his record sales alone, we can see that his influence is extraordinary.
From the mid-50s to the mid-70s, Elvis Presley has a lot of international hits, and even after his death, any reprint of his album can maintain extremely stable sales. There is no doubt that he is the best-selling artist in the history of pop music.