ET has confirmed that actress Kelly Preston has cancelled a speaking engagement in which she was set to discuss the tragic loss of her son, Jett Travolta. The actress was asked by her friend, California first lady Maria Shriver, to speak about her loss at Shriver's annual Conference for Women on a panel titled "Grief and Resilience." "It is with my sincere apologies that I must pull out from speaking at [the] conference. I am sorry, but I truly believed that I could do it," Preston tells People.com. "Otherwise I never would have said that I could. But I am still deeply in the process of healing, and it's just too soon."

Stars such as Lindsay Lohan, Sean "Diddy" Combs, John Mayer and Alyssa Milano are tweeting their heartfelt reactions to the news that celebrity club disc jockey Adam Goldstein (a.k.a. DJ AM) was found dead. First, we have the final message the late star posted on his own Twitter account. DJ AM’s final Twitter message, posted on August 25, reads: "New york, new york. Big city of dreams, but everything in new york aint always what it seems." The cryptic line comes from the opening lyrics of "New York, New York" by Grandmaster Flash. In reaction to the sad news, Lindsay tweeted, "i can't believe this.. i'm in shock. why? why? r.i.p. adam"

ET can confirm that celebrity club disc-jockey Adam Goldstein (a.k.a. DJ AM) has died at the age of 36. Read on for the details. Goldstein was found dead in his New York City apartment on Friday, a rep for the late star tells us, adding that the circumstances surrounding his death are unclear. The NY Fire Department tells us they received a call at 5:24 p.m. and were dispatched to an address where the male on the scene was pronounced dead at 6 p.m.

Michael Jackson gained immortality Thursday at the world-famous Madame Tussauds in Hollywood. Read on for details… A wax figure of the King of Pop was unveiled to pomp and circumstance, just two days before what would have been his 51st birthday, and ET was there! The museum turned the occasion into a big celebration, with a DJ spinning the Grammy winner's timeless tunes and Jackson imitators strutting their stuff, including a Moonwalk demonstration.

ET can confirm that Calif. Attorney General Edmund G. Brown, Jr. is launching an independent investigation into several physicians whose names have arisen during the Michael Jackson death investigation. "Responding to a request from the LAPD, agents from my office will investigate several physicians whose names have come up in the course of the Michael Jackson death inquiry," Brown says. "This investigation is at its earliest stages, and no conclusions can be drawn at this point." Agents from the attorney general's Bureau of Narcotic Enforcement will delve into relevant records and documents in the coming days and weeks. Earlier Friday, the LAPD released a statement to ET saying the Drug Enforcement Administration will conduct their own independent investigation related to Michael Jackson as well.

Ed Chernoff, the attorney for Michael Jackson's personal physician Dr. Conrad Murray, is speaking out to ET about today's announcement from the Los Angeles County Coroner's office that revealed Jackson's cause of death and ruled it a homicide. Chernoff tells ET: "This press release contains nothing new. For two months we have been hearing the same information, usually from leaks out of the coroner’s office. One has to wonder why the coroner felt compelled to release anything at all if the police investigation is not yet complete. "In any case, this has all the earmarks of police gamesmanship, and we will not be responding until we get a full autopsy report, including the entire list of drugs found in Mr. Jackson, their quantities, and all other data that would allow independent medical experts to analyze and interpret."

Michael Jackson's family is opening up to ET with their reaction to the late star's autopsy results released on Friday. "The Jackson family again wishes to commend the actions of the Coroner, the LAPD and other law enforcement agencies, and looks forward to the day that justice can be served," the family's statement to ET says. Keep checking back here for the latest.

The LAPD tells ET that the investigation into Michael Jackson's death is continuing, following the L.A. County Coroner's announcement about the cause and nature of Jackson's demise. The LAPD, which describes itself as the "primary investigative agency" responsible for the death investigation, tells ET the investigation is "ongoing and will result in the case being presented to the Los Angeles County District Attorney for filing consideration." The LAPD adds that the DEA (Drug Enforcement Administration) and BNE (Bureau of Narcotics Enforcement) have launched their own independent investigations into findings the LAPD's investigation uncovered that "may not be directly related to [Jackson's] cause of death."

The Los Angeles County Coroner has announced the cause of death for Michael Jackson and revealed that his death was ruled a homicide. The announcement indicates that the King of Pop died of  "acute Propofol intoxication" and "other conditions contributing to death: Benzodiazepine effect."  A Benzodiazepine is a sedative-hypnotic. "The drugs Propofol and Lorazepam were found to be the primary drugs responsible for Mr. Jackson's death. Other drugs detected were: Midazolam, Diazepam, Lidocaine and Ephedrine," the announcement goes on to state.

"Jon & Kate Plus 8" dad Jon Gosselin is pronouncing his love for his girlfriend, 22-year-old Hailey Glassman -- but how does he feel about his estranged wife Kate? Read on to find out! "I love Hailey," Jon tells People.com, adding that they started "talking" in May but began dating only after Kate filed for divorce in June, because going out before that time "wasn't appropriate." "I'll always love Kate," Jon says. "I went through a whole bunch of pictures today, and it's sad to see something that was good turn bad, but we moved in two different directions. We know that."