Roger "Buzz" Osborne, also known as King Buzzo, is an American guitarist, vocalist and songwriter. He is a founding member of the rock band Melvins, as well as Fantômas and Venomous Concept.

Melvins are an American rock band formed in 1983 in Montesano, Washington. Their early work was key to the development of both grunge and sludge metal. Primarily a trio, they have also performed as a quartet, with either two drummers or two bassists. Since 1984, vocalist and guitarist Buzz Osborne and drummer Dale Crover have been constant members.