Lawyer John Branca and executive John McClain were named executors in a will Jackson signed in 2002 that left his estate, valued at more than $500 million, to a trust benefiting his three children, his mother, and charities.
The judge last week had given temporary control to Jackson's mother, Katherine Jackson, before the will surfaced.
"I think the law compels that result. I think that Mr. Jackson had felt comfortable, at least in 2002, with these individuals," Los Angeles Superior Court Judge Mitchell Beckloff said at a hearing. Another date was set for August 3.
Separately, thousands of fans were picking up coveted tickets for the singer's memorial on Tuesday.
Singers Mariah Carey, Jennifer Hudson and Stevie Wonder were among entertainers expected to perform or attend the event at the Staples Center sports arena in downtown Los Angeles.
The acting mayor of Los Angeles, Jan Perry, told NBC4 television that Jackson's family would hold a private burial at the city's Forest Lawn cemetery at 8 a.m. on Tuesday -- a couple of hours before the arena memorial.
About 1.6 million people registered to be among the 8,750 to receive two free tickets to the event. Successful fans lined up early on Monday to collect their tickets, although some tried to auction their vouchers on websites like eBay and Craigslist.
Both websites were swiftly removing the listings, which carried asking prices of up to $10,000.
Jackson, 50, died on June 25 of cardiac arrest. Toxicology reports, expected in about four weeks time, are pending on the precise cause of death.
(Editing by Patricia Zengerle)
COPYRIGHT: (c) Reuters 2008. All rights reserved. Republication or redistribution of Reuters content, including by caching, framing or similar means, is expressly prohibited without the prior written consent of Reuters. Reuters and the Reuters sphere logo are registered trademarks and trademarks of the Reuters group of companies around the world.