The Top 500 Heavy Metal Songs of All Time, Martin Popoff. Which made me start my own list...

1."Purple Haze", Jimi Hendrix
2."Immigrant Song", Led Zeppelin
3."Sober", Tool
4."Eighteen", Alice Cooper
5."War Pigs", Black Sabbath
6."Aqualung", Jethro Tull
7."The Pusher", Steppenwolf
8."Hymn 42", Jethro Tull
9."Dazed and Confused", Led Zeppelin
10."Dreamer Deceiver", Judas Priest
11."Paranoid", Black Sabbath
12."Unforgiven", Metallica
13."No One Like You", Scorpions
14."Dream On", Aerosmith
15."Cult of Personality", Living Color
16."Rainbow in the Dark", Dio
17."Ain't Talkin' 'Bout Love", Van Halen
18."Closer to the Heart", Rush
19."Godzilla", Blue Oyster Cult
20."Stranglehold", Ted Nugent