MICHAEL JACKSON Startin' Somethin' (Rare pair of 1983 US ultra-high-grade methyl cellulose metal based lacquer reference single sided test pressing acetates with a playing speed of 33 1/3rpm, featuring the Vocal and Instrumental versions. Released as the fourth single from album, Thriller, on the 8th May 1983. The discs each have Allen Zentz Recording studio labels, custom typed with with artist name, the abrivated title [instead of Wanna Be Startin' Somethin'] and dated '4-22-83', with a stickered studio card sleeve. These would have been produced in very small numbers before the finished article, intended for sonic review & not commercial resale. The disc remains in nice condition with just faint signs of cosmetic wear only natural with acetates. Very tough to find).