Among the people believed to be in attendance was LaToya Jackson.
A hearse was also seen backing up to a building at the Hall of Liberty complex. A few hours later, the casket was reloaded into the hearse and delivered to another nearby building, this time covered in a blue cloth.
The list includes, family friend Ron Boyd; Kobe Bryant; Mariah Carey; Andrae Crouch Choir; Berry Gordy; Jennifer Hudson; British singer Shaheen Jafargholi; Magic Johnson; Martin Luther King III; Bernice A. King; John Mayer; Lionel Richie; Smokey Robinson; Rev. Al Sharpton; Brooke Shields; family friend Pastor Lucious Smith; Usher; and Stevie Wonder.
According to posts on her Twitter page, actress and longtime Michael Jackson friend Elizabeth Taylor says she will NOT attend Tuesday's memorial ceremony.
Taylor says she was asked to speak, but she "cannot be part of the public whoopla," and also that "I cannot guarantee that I would be coherent to say a word."
This list is preliminary and subject to change. There will be no further information regarding the program.
Meantime, thousands of fans who won a raffle to attend the memorial service picked up their tickets and wristbands at Dodger Stadium Monday.
Tickets were being issued to only the person whose name was on the voucher, officials said. The vouchers were also scanned for authenticity.
An estimated 1.6 million people registered for the online lottery to attend the service.
The 20-hour registration period for tickets began at 10 a.m. Friday and ended at 6 p.m. Saturday.
A computer performed the random selection after the entries were "scrubbed" to eliminate duplicates and those submitted by auto-entry systems.
A total of 17,500 tickets were given out.
11,000 tickets were for the Staples Center, and 6,500 were for the nearby Nokia Theatre, where fans will watch the service on big screens, according to AEG President Tim Leiweke.
The odds of getting a ticket were about 1 in 183.
To avoid potential reselling of tickets, a single distribution center was used.
Winners won't know which venue they will be allowed into until they arrive at the tribute.
Sellers on eBay quickly offered tickets with starting bids of $200 to $500. One auction had several bids and was up to $15,000 Monday.
Organizers were considering how to distribute any unclaimed seats, but had not immediately decided on a plan.
A coalition of youth and civil rights groups in Los Angeles urged the ticket winners to donate to charities and social causes that Michael Jackson supported during his life.
Jackson Family Arrives at Forest Lawn, Body Will Be At Staples Center
A public memorial for the pop star will be held at Staples Center today
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