I think that some artist produce pure works of art which can never be reproduced, and are simply timeless being an MJ fan of course you will expect me to mention Thriller but I think the success of that album was thanks to its predecessor Off The Wall which I think really showed the depth of MJs ability as a vocalist and sole artist.

Also have to add two other classicalbums with U2's Joshua Tree and Dire Straits Brothers in Arms. Pure Genius.