Michael Edward Mills (born December 17, 1958 in Orange County, California) is the bass player of the band R.E.M. Though known primarily as a bassist and piano player, his musical repertoire includes many other keyboard, string, wind and percussion instruments. He also contributes to much of the band's songwriting. Wikipedia
The definitive Wikipedia entry for Mike Mills. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Mike_Mills