The representatives of Michael Jackson were against the zombie version of Michael Jackson (dancing thriller with other zombies) in the game Plants Vs. Zombies. PopCap didn’t want to start something legally with Jackson’s legal team, so they opted to drop that moonwalking zombie for something less litigious.
The Disco Zombie is the actual version offered since July 2010, and if you upgrade your game in iPhone, iPod and iPad (or other consoles) you will loose Michael.
As sad as it is to see zombie Michael go to his grave, zombies wearing medallions and platform shoes with dead goldfish inside makes the change less upsetting.
Here is a short video where we can see the zombified version of Michael Jackson. Thriller plays in the background but no song was played in the actual game.