I know ''It's truth'' I know ''It's truth'' (Instrumental) I Know '91 I Know '99 (Love Decade Remix) I Know '99 (Original Flute Mix) I Know '99 (Quake Dub) I Know '99 (Quake Instrumental) I Know '99 (Quake Remake) I Know '99 (Quake Vocal Remake) I Know '99 (Radio Edit) I know 'bout the life