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No More Mr. Nice Guy is the title of three different albums:
- No More Mr. Nice Guy, the 1989 debut album by alternative hip hop duo Gang Starr
- No More Mr. Nice Guy, a 1989 album by thrash metal band Megadeth
- No More Mr. Nice Guy, an album of covers of heavy metal songs by genteel pop/country/gospel star Pat Boone
The book No More Mr. Nice Guy is the title of a book by Dr. Robert A. Glover. published in 2003.