Celebs react to the news of Michael Jackson's death ...

Madonna ... "I can't stop crying over the sad news. I have always admired Michael Jackson. The world has lost one of the greats, but his music will live on forever! My heart goes out to his three children and other members of his family. God bless."

Britney Spears ... "I was so excited to see his show in London. We were going to be on tour in Europe at the same time and I was going to fly in to see him. He has been an inspiration throughout my entire life and I'm devastated he's gone!"

Justin Timberlake ... "I can't find the words right now to express how deeply saddened I am by Michael's passing. We have lost a genius and a true ambassador of not only Pop music but of all music. He has been an inspiration to multiple generations and I will always cherish the moments I shared with him on stage and all of the things I learned about music from him and the time we spent together. My heart goes out to his family and loved ones."

Liz Taylor ... "Dame Elizabeth Taylor is too devastated by the passing of her dear friend Michael Jackson to issue a statement at this time."

Michael Jackson was said to be on a cocktail of up to seven prescription drugs in the months before his death, according to Life & Style magazine.

The report says Jackson was taking painkillers and anti-anxiety drugs in recent months and that it was an overdose of these medications that led to respiratory and cardiac arrest.

Jackson family attorney Brian Oxman told Nancy Grace on CNN that he had been warned about Michael's prescription drug use as he prepped his UK shows. "Where there is smoke, there is fire," he said -- and he compared Jackson to Anna Nicole Smith, saying Michael had "enablers" just as she did.

Meanwhile, another report says Jackson was being visited daily by doctors. A source told Hollyscoop about Jackson's personal physician was with the King of Pop at the hospital today.

As more reports come in, we'll continue to bring you the news throughout the night ...

Michael Jackson's body has been airlifted from UCLA Medical Center to the Los Angeles County Coroner's Office where his body will be autopsied tomorrow.

We just heard that Jackson's last words to his family were, "I love you all."

Well we loved Jacko too and he was so kind with us ... Here's the last video we shot of the King of Pop, on June 16 as he went to his doctor's office in Beverly Hills:

Michael Jackson's bodyguards are INSISTENT upon not letting anyone get close to the hospital doors for fear of a photo of their beloved Jacko getting out to the media. You can see the TV cameraman above getting yelled out by one of MJ's men in black and check out the cops blocking the entrance to the emergency room ...



Here's the scene at the hospital an hour ago ...



And here's Carolwood Dr. where Jackson's house is -- this photo was taken an hour ago but I just drove by and the street is now roped off with police tape:

As you know, Michael Jackson passed away at the age of 50 today. The pop icon suffered cardiac arrest earlier this afternoon, and when paramedics arrived at his Beverly Hills home, he wasn't breathing and they were unable to revive him. Jackson was rushed to the UCLA Medical Center, and shortly after he arrived at 1:10pm, he was pronounced dead.

A source inside the hospital tells X17online exclusively:

"Michael was non-responsive when he arrived in the emergency room. They didn't call a time of death until he was here. They tried to revive him, then said he was dead.

A few different people were with him but they were all giving conflicting information. The sense of a possible drug overdose is lingering. They're sending him in for an autopsy."

Additionally, the LA Times reports that even the authorities have their doubts:

The circumstances of Jackson's death remain unclear. Law enforcement sources said that Los Angeles Police Department robbery-homicide detectives have opened an investigation into the death, though they stressed there is no evidence of criminal wrongdoing. The detectives plan to interview relatives, friends and Jackson's doctors to try to figure out what happened. The L.A. County coroner's office will determine a cause of death.

What do you think happened to the King of Pop?

Michael Jackson's mother Katherine was just snapped arriving at the UCLA Medical Center in Los Angeles, where Michael Jackson has passed away.

Michael Jackson has passed away at the age of 50.

The legendary pop star suffered cardiac arrest earlier this afternoon, and when paramedics arrived at his Beverly Hills home, he wasn't breathing and they were unable to revive him.

Michael is survived by three children, Michael Joseph Jackson, Jr., Paris Michael Katherine Jackson and Prince "Blanket" Michael Jackson II.

X17online was the first to report that Jackson was rushed to the UCLA Medical Center earlier this afternoon, and we brought you the first pictures of the pop star as he was wheeled into the hospital.

Michael Jackson arrived at the UCLA Medical Center in Los Angeles at 1:10pm this afternoon after reportedly suffering from cardiac arrest approximately two hours ago.

Captain Steve Ruda of the Los Angeles Fire Department told the LA Times that when paramedics arrived at Jackson's mansion, the king of pop was not breathing. Two SUVs followed Jackson's ambulance as he was rushed to the hospital and we're told by eyewitnesses that about ten people emerged from the two cars when they arrived.

An X17 photog on the scene tells us that when he attempted to snap shots at the hospital, he was immediately accosted by one of Michael's bodyguards who grabbed him by the throat and shoved him, yelling for him to "get away!"

UPDATE:
Sources are now telling X17online that Michael Jackson may have in fact passed away!