Michael Jackson passed away four years ago Tuesday, and fans are flocking to his mausoleum to leave massive piles of flowers.

In fact, one fan group of the King of Pop called "One Rose for Michael Jackson," donated more than 10,000 roses to the grave site at Forest Lawn cemetery in Glendale, Calif., according to TMZ.

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Michael Jackson died from a fatal dose of Propofol on June 25, 2009, that his doctor, Dr. Conrad Murray, administered him. Jackson was preparing for a 50-concert tour, which was to begin in London that July.

The last few weeks of Michael Jackson's life were harrowing: At times Jackson was so drug laden he was unable to communicate, would sometimes miss scheduled rehearsals, and may have shared his bed with a toy doll.

Murray is currently in jail, serving four years for involuntary manslaughter. He was convicted in November 2011.

Jackson's death was a complete shock to fans, as he was only 50 years old, but based on the swell of support for the pop star, his death hasn't overshadowed his legacy.

Here's what fans said on Twitter of the King of Pop:

Four years have passed since his death? #MichaelJackson whooah that's crazy. RIP 🙏 HE WENT TOO SOON

— Ani Caribbean (@AniKaribyan) June 25, 2013

'The best education in the world is watching the masters at work' - Michael Jackson - RIP #DontStopTilYouGetEnough pic.twitter.com/0ArsGi009s

— Nathan Shaw (@Nath_Shaw) June 25, 2013

"To give someone a piece of your heart, is worth more than all the wealth in the world." Michael Jackson #legend #legacy

— Wyclef Jean (@wyclef) June 25, 2013

When other kids sat watching cartoons...I say in front of a boombox listening to #MICHAELJACKSON for hours on end. Will never forget that.

— Ksenia Solo (@KseniaSolo) June 25, 2013

most importantly please call me PYT today in honor of michael jackson pic.twitter.com/AOibvyqP4f

— victoria (@theblowout) June 25, 2013

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