Heavy metal, in it's true form, has been absent from the American music scene for a decade or more. With one song, one chord, one Ozzy-like wail, Wolfmother ($8) has announced its return with a kick-your-ass bravado not seen since the coming of grunge. With a sound heavily influenced by Led Zeppelin, The Who, and especially Black Sabbath — think War Pigs here — Wolfmother's debut effort is easily one of best rock albums of the year — and we can't wait for more. Standout Tracks: "Woman," "Dimension," "Love Train."