Those who can't get the precious tickets – 11,000 in the Staples Center and another 6,500 to watch on big screens at the Nokia Theatre L.A. Live across the street – can watch a live worldwide television feed being provided free to networks or on streaming video on the Web.

Organizers are using a wristband system to crack down on scalpers.

"This is a memorial. I'm hoping that people have dignity. We're doing our best to accommodate the worldwide demand," said Tim Leiweke, president and CEO of AEG, which owns the Staples Center. "For those who would try to take advantage of this, shame on them."

The actress-designer-pop chanteuse will play Olivia Burke, a movie star who enrolls at NYU in search of a traditional college experience. She ends up rooming with Vanessa (Jessica Szohr) so it's safe to say she'll be majoring in Drama!

Duff will debut in this season's fourth episode, slated to air Oct. 5.

Gossip producers spotted an opening in Duff's schedule after NBC passed on her comedy pilot Barely Legal.

"During this very difficult time we will be working to focus solely on the needs of our family. This includes no longer commenting publicly or reacting to media stories and speculation. Our goal is to do the very best for our children and that will be done as privately as possible. We appreciate the understanding, support and well wishes from so many.

Thank you."

Randy Phillips, president and CEO of AEG Live, the nation's second largest concert promoter, emailed that he would not comment for the story.

The recordings also could be used to produce both a DVD or Blu-ray disc of the entertainer's last performance -- the entertainer singing his greatest hits.

One AEG official boasted to a colleague this weekend, "We have a live album in the can."

And what an album it would be. Amazon, record stores and retailers like Barnes and Noble sold of all Michael Jackson stock almost immediately -- and in a matter of minutes following the news of Jackson's death, in the case of Amazon.

"He's so beloved in the world, somehow, perhaps we can find a way to pay tribute to his mind, talent, vision and heart," Ortega said hours after Jackson's death. "Maybe part of what we were planning to do in London and beyond -- maybe we can share some of these ideas in a different capacity."

He said he was "only imagining." But the director outlined an idea to organize a creative collaboration modeled on "We Are the World," the 1985 song written by Jackson and Lionel Richie to benefit African charities that enlisted a group of pop superstars including Stevie Wonder, Bob Dylan, Bruce Springsteen and Diana Ross.

"It wouldn't take an enlightened thinker to come up with a way," Ortega said. "There must be a hundred ways we can celebrate this man's legacy. Broadway. Movies. Vegas. I hope all his artist friends will come together and have a real 'We Are the World' where we can share stories and Michael's legacy in some great celebration. I'm sure they would love nothing more than to be a part of it."

According to the Los Angeles Times, AEG had invested a reported $20 million in production costs for the shows, billed as the "This Is It" concerts, which were scheduled to begin on July 13. AEG's profits for the concerts were expected at around $115 million, with a three-year worldwide tour also planned that could have grossed $450 million.

In a statement released Friday afternoon, AEG President & CEO Randy Phillips said, "Yesterday was a day I will never forget, or want to remember. Michael was both weak and strong, clever and kind, talented beyond belief and equally insecure. He was a doting father, respectful son, loving brother, and caring uncle. He was my friend. I take great solace in the pride and confidence he exhibited during production rehearsals on Wednesday night. That is the memory I will cherish for the rest of my life."

Despite rumors that Jackson had been falling ill, a source close to Jackson told MTV News, "Michael has been in rehearsals. He's been in good spirits. He's been rehearsing eight hours a day for the London concerts."