In her heyday, Amy Grant made over 10 Million yearly on just Concert Tours. She writes the majority of her songs and signed her first contract at 16. She lost some of her Wealth thru her divorce but...
Marshall Mathers is the 7th richest artist in hip-hop (net worth of 110 million). The richest artist would be P-Diddy with over 350 million.
Right now i'd say it's irrelevant...
Somewhere around $450 million.
2million $ maybe..
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