Your search for "upsetter" revealed the following:
JOHNNIE CLARKE [I Need Someone]
SOLD OUTID No. 215694 Label BLACKART (JA) Production Upsetter Late Genre Roots Rock / Male Vocal Condition VG+ Soundclip
AUGUSTUS PABLO [Vibrate On]
SOLD OUTID No. 204976 Label BLACK ART (UK) Production Upsetter Late Genre Roots Rock / Inst Condition EX- Soundclip
STRANGER & GLADDY [Conquer]
SOLD OUTID No. 229999 Label DRAGON (UK) Production Upsetter Early Genre Reggae70sEarly / Male Vocal Condition VG Soundclip
LEVAL THOMPSON [Jah Ja Dread]
SOLD OUTID No. 191605 Label MART'S (US) Production Upsetter Late Genre Reggae70sMid / Male Vocal Condition EX- Soundclip
RONNIE DAVIS [Babylon Falling]
SOLD OUTID No. 230458 Label UPSTAIRS (JA) Production Upsetter Late Genre Reggae70sMid / Male Vocal Condition EX(WOL) Soundclip
BUNNIE AND RICKEY / LEE PERRY [Too Bad Bull / Bad Cow]
SOLD OUTID No. 228837 Label ATTACK (UK) Production Upsetter Late Genre Reggae70sEarly / Group Vocal Condition EX Soundclip* Proverb
MAX ROMEO [One Step Forward]
SOLD OUTID No. 228273 Label ISLAND (UK) Production Upsetter Late Genre Reggae70sMid / Male Vocal Condition EX- Soundclip* Killer!
LLOYD PARKS [Proffessor Ironside ]
SOLD OUTID No. 212096 Label JUSTICE LEAGUE (JA) Production Upsetter Early Genre Reggae70sEarly / Male Vocal Condition VG+ Soundclip
AL CAMPBELL [Where Were You / When The Grass Is Green]
SOLD OUTID No. 221550 Label SUN SHOT Production Upsetter Late Genre Reggae70sEarly / Male Vocal Condition EX Soundclip* Upstter
JAMES BOOMS [Psalm Twenty]
SOLD OUTID No. 213595 Label BLACK ART (JA) Production Upsetter Late Genre Reggae70sMid / Male DJ Condition VG Soundclip