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The Michael Jackson exhibition at Tokyo Tower started on Apr 29th to July 11th.
The following site shows some of the exhibits http://nipponnews.photoshelter.com/gallery/Michael-Jackson-The-official-Lifetime-Collection/G0000qZsPomvzgKQ




On the night marking the 1st year anniversary of Michael's death, randomly selected guests will pay up to $1,000 for a one-time opportunity to sleep on the floor to spend the night with Michael’s posessions.  These randomly selected fans will enter the tower at 10:30pm on the night of June 25 and will be able to stay until 8am the following morning. Hiroyuki Takamura of the Tokyo Tower says, "The idea may sound a bit odd to Western cultures, but in Japan the tradition of being with the remains and possessions of passed loved ones on the anniversary of their passing is an important ritual."

 
A tour show expected to debut late Fall 2011, and a Las Vegas permanent show is planned to open in late 2012. For further information, please refer to Cirque du Soleil press release :
 http://www.cirquedusoleil.com/en/press/news/2010/michael-jackson.aspx
Michael Jackson Cirque du Soleil trailer
I've found the following video on youtube, this could be an example of how Michael and Cirque collaboration can look like :-) Enjoy!!