It would have been the 55th birthday for King of Pop Michael Jackson if he was alive today. But the sensational pop singer is still very much alive in the hearts of his music lover fans who didn't forget to wish him on Twitter.

After the sad demise of Jackson, who died some four years ago in 2009, three official albums have been released in his name. The album includes the concert film soundtrack "This Is It," the 2010 unreleased collection "Michael" and the Cirque du Soleil remix album "Immortal." It's a great way to remember the pop singer who was a truly gifted singer and dancer in the history of pop.

In a bid to pay tribute to greatest ever artist on his birthday August 29, his official Website www.michaeljackson.com is asking fans to create Instagram videos in which they share ideas "for making the world a better place" and share with the hashtag #MJWeAreOne.

The Website is calling it "Michael Jackson We Are One Worldwide Birthday Celebration," and the initiative is organized by the estate of Michael Jackson, along with Cirque du Soleil.

Other good news for Michael Jackson fans is from Timbaland who will release his previously unrealised single "Chicago" soon. Timbaland recently unveiled a mysterious new teaser video where he talks about "two kings working together." Photographs of Michael Jackson appear to flash in the background as he talks and later a picture of MJ appears for a few seconds.

According to Jackson fans, the music producer could reportedly be talking about the never-released Michael Jackson song called "Chicago 1945" written and recorded in 1985 for the Bad album and re-worked in 2000 for the "Invincible" album with Rodney Jerkins. Whatever it is we wish it is released soon and fans of the singer would be thrilled for it.

Meanwhile Justin Justin Bieber, Diddy and Corey Feldman were among many starts who wish MJ happy birthday on Twitter.

"Happy birthday MJ. #thegreatest #RIP," Bieber wrote on Twitter.

" Happy Birthday to the greatest performer of all-time Michael Jackson!!! There's only one KING!!," said Diddy on Twitter.

Here is wishing the King of Pop a very Happy Birthday in Heaven.

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