His "Black Album" was heavily bootlegged before its official release in 1994
Just a few months after 
the withdrawal of The Black Album (it finally saw official release in late 1994),... [DOC] [TLE] Prince | Rolling Stone [PAR] In fact, Prince played nearly all the instruments on his first five albums, and has 
produced himself .... Before its eventual official release in late 1994, The Black 
Album became one of the most bootlegged LPs in pop history.