The Staples Center in Los Angeles will be the site for the late pop star Michael Jackson's public memorial service Tuesday. (Carolyn Kaster/Associated Press)

Stevie Wonder, Mariah Carey and Jennifer Hudson are among the stars scheduled to pay tribute to Michael Jackson on Tuesday.

The representatives for Jackson's family released a list Monday of stars participating in the memorial service.

Other singers involved in the tribute, which will feature performances of some of the Jackson's greatest hits, include John Mayer, Usher and Lionel Richie.

Also on the list are L.A. Lakers star Kobe Bryant, actress Brooke Shields, Martin Luther King III and his sister Bernice and Motown founder Berry Gordy.

An attorney for Jackson's ex-wife Debbie Rowe said she would not attend.

Some 8,750 names were randomly drawn from an online lottery Sunday for free tickets to the memorial.

Each of those lucky fans has the opportunity to invite a friend with a second ticket and some of those tickets were selling online for thousands of dollars.

Selected people are required to pick up their two tickets Monday and organizers will be putting wristbands on those people. Fans must have a wristband and ticket to enter the Staples Center for Tuesday's memorial.

However, those selected can give anyone their second bracelet.

"Theoretically, the second wrist band can be sold," said Staples Center spokesman Michael Roth.

Some Canadian fans reported getting tickets but being unable to fulfill the conditions for picking them up.

They were unable to sell their tickets online because auction sites began blocking sales of Jackson memorial tickets.

The tickets admit 11,000 people to the Staples Center and another 6,500 to the Nokia Theater overflow section next door. Wristbands that are ripped or tampered with will be voided.

The event, starting at 10 a.m. PT, will be streamed online and also shown on at least five networks.

'Locked down and iron tight'

The winners of the lottery say they couldn't believe it when they got the confirmation emails late Sunday.

"It's Michael Jackson, one of the greatest musical stars of all time,' said computer science student David Gobaud, 25, from San Francisco.

L.A. councillor Dennis Zine, a former police officer, told CBC Newsworld that the city is well-prepared for the onslaught of grieving fans.

"We're anticipating thousands will show. This is unprecedented ... we have never seen anything like this before," said Zine.

"We are going to have this locked down and iron tight with additional personnel," said Zine, who indicated 10,000 officers will be assigned to the event in some way.

The cost, according to the councillor, is hitting $2 million US — something that worries city officials. Los Angeles is already millions in debt.

"We could deplete the overtime budget for the entire year with this."

With files from The Associated Press