Actress Sharon Stone spent her weekend in the park, playing with her three adorable kids. Hollywood.tv caught Sharon and her children -- Roan, Laird and Quinn -- running around the playground. As they were leaving, her son politely said "hello" to photographers. Keep checking ETonline for more summer celebrity sightings.

The special new issue of Vanity Fair features two separate covers and delves into the lives of Michael Jackson and Farrah Fawcett, two icons who both died on June 25. Inside the mag, revealing early interviews with Michael shed light on his metamorphosis from Jackson Five child star to the King of Pop. Plus, Ryan O'Neal opens up about his tumultuous relationship with longtime love Farrah. In the issue's MJ piece, contributing editor Lisa Robinson excerpts her notes and interview tapes with the late music icon from 1972 and 1989. Highlights include the results of a questionnaire that Robinson says Michael filled out at age 18, in which he reportedly wrote that his father Joe and "experience" gave him the most help career-wise; and that he wanted to wed "later in life" and have "20" kids, "adopted" of "all races." Meanwhile, in the issue's candid Ryan O'Neal interview, the actor ...

"Dancing with the Stars" pro Julianne Hough takes ET inside her 21st birthday bash! "This is kind of the moment where you kind of feel that you're officially an adult now," she said of turning 21. Hough partied at the Borgata Hotel Casino & Spa in Atlantic City on Saturday night, along with her close family.

"Dancing with the Stars" alum Cloris Leachman opens up to ET about the loss of Michael Jackson and speculates as to whether or not drugs were involved, as was the case with her son Bryan's death. "It's very sad," Cloris says of Michael's passing. "But when somebody dies, it’s a village; everybody suffers." "I lost my son," Cloris says of Bryan, who died of an overdose in 1986. "And you’re not talking to them. You’re talking to the drugs. They can’t hear you. It’s a mystery how to solve it.”

Actress Jessica Biel made her musical-theater debut this weekend! Biel, 27, joined the Los Angeles Philharmonic for a three-night performance of Guys and Dolls at the Hollywood Bowl in California. Biel plays the part of Manhattan missionary Sarah Brown, a woman who goes up against a group of gamblers only to fall in love with one of them.

The First Family -- President Barack Obama, Michelle, Sasha, Malia and Michelle's mother Marian Robinson -- boarded Marine One for a weekend vacation at Camp David. ET has the pics!

Ali Larter has reportedly married one of her movie costars. The "Heroes" actress wed her 'Homo Erectus' costar Hayes MacArthur in a quiet ceremony on his parent's estate in Kennebunkport, Maine, Usmagazine.com confirms. The couple married on the lawn of the estate and guests arrived to the ceremony in trolleys. Irish music played before the wedding in honor of MacArthur's heritage.

La Toya Jackson is opening up about her late brother Michael on her new blog site. “Michael, after 50 years of waiting, God has finally called you home to do what you do best,” La Toya blogs. “He shared your extraordinary talent with us all for many decades and now it’s time for you to spread your wings to a much higher level, which of course I know you will do, and join the other angels and give them an incredible eternal performance.

Kevin Costner is speaking out to ET about the tragic stage collapse that killed one person and injured as many as 75, prior to a planned performance by Costner and his band Modern West at a country music festival in Alberta, Canada on Saturday night. "We are so saddened by the loss of life and injury that occurred on a day that carried so much promise, but turned so wicked so quickly. We hope to return to Alberta in the future to help with the healing," a spokesman for Costner and his band tells ET. The Oscar-winning actor went to the hospital with two of his crew who were injured in the incident. They were treated and released, and Costner visited with others that were injured while there.

"Dancing with the Stars" pro Julianne Hough partied at the Borgata Hotel Casino & Spa in Atlantic City on Saturday night to celebrate turning 21 -- and ET has all the details. Julianne got into party mode with her close family, including her two sisters, who flew in from Nashville. After enjoying some chit-chat and room service cuisine, the birthday girl splurged on a gift for herself: black and navy LAMB high heels from Fixation at The Shoppes at The Water Club. Later the whole group chowed down at Bobby Flay Steak in Borgata where Julianne drank a specialty cocktail made exclusively for her in honor of her bday.