Jermaine Jackson was at the Save The World Awards in Vienna in July
Jermaine Jackson is organising a star-studded concert to pay tribute to his brother Michael in Vienna next month, the show's promoters have said.
The event will be held on 26 September, with the pop star's elder brother putting the line-up together.
"Jermaine Jackson will take care of that personally," a spokeswoman for World Awards Media told BBC News.
"He is enquiring [about] all his friends and stars he knows for that concert," she said.
But she said she did not know whether Jermaine and other Jackson family members would perform themselves.
In July, Jermaine appeared in Vienna to accept a posthumous honour on behalf of his brother at the Save the World Awards, also organised by World Awards Media.
There have been reports of Jackson tribute shows at London's O2 Arena
While there, he visited Schoenbrunn Palace, once home to Emperor Franz Joseph.
"They were so excited about this location that they enquired if that would be a possibility to have the tribute take place here," the spokeswoman said.
World Awards Media is not connected to AEG, the promoters who were due to have staged Jasckson's comeback concerts at London's O2 arena.
AEG was also reported to be working on a separate tribute show at the O2 on Jackson's birthday, 29 August.
But AEG Live boss Randy Phillips said that will not now happen because footage from Michael Jackson's O2 rehearsals, which would have been used, is being held back for a film release.
"The 'potential' tribute show on 29 August was never pursued because the [Michael Jackson] Estate, AEG Live and Sony Pictures agreed that the first time an audience should see the This Is It production was 30 October 2009, when the concert film/documentary opens worldwide."
The World Awards Media spokeswoman said she had no information on other concerts but added: "I think this is the only one he [Jermaine] is organising for this year."
Tickets for the Vienna show go on sale on 20 August.