Nick Steven Oliveri (born October 21, 1971) is an American multi-instrumentalist, singer and songwriter from Los Angeles, California. He is perhaps best known as a former member of Kyuss and later Queens of the Stone Age from 1998 to 2004. Oliveri is also a solo artist and frequent contributor to his friends' albums and tours, including Winnebago Deal, Mark Lanegan Band, Masters of Reality, Turbonegro and Moistboyz, among many others. He is currently the frontman of his project, Mondo Generator, a punk and metal hybrid that he formed in 1997. He has also worked periodically with the Dwarves since 1993.