Lee Mark Ranaldo is an American musician, singer-songwriter, guitarist, writer, visual artist and record producer, best known as a co-founder of the alternative rock band Sonic Youth. In 2004, Rolling Stone ranked Ranaldo at number 33 on its 'Greatest Guitarists of All Time' list. In May 2012, Spin published a staff-selected top 100 guitarist list, ranking Ranaldo and his Sonic Youth bandmate Thurston Moore together at number 1.