Which musician, Ian Ball or Dave Mustaine, is co-founder of the American metal band Megadeth?
Dave Mustaine: David Scott Mustaine (born September 13, 1961) is an American musician, singer, songwriter, actor and author. Ian Ball: Ian Thomas Ball (born 19 October 1975) is an English musician, most notable for being part of the indie rock band Gomez, sharing lead vocals and guitars. Ian Ball:  He is also a member of the 14 piece supergroup Operation Aloha (album). Ian Ball:  along with fellow Gomez member Olly Peacock.
i don't know