CORRECTED - Jackson public memorial likely Tuesday in LA

(Corrects lead paragraph and headline to likely Tuesday)

LOS ANGELES, July 2 (Reuters) - A public memorial for singer Michael Jackson will be held on in Los Angeles, likely on Tuesday, a concert promoter said on Thursday, as the singer's former wife said she planned to fight for custody of their children.

Randy Phillips, Chief executive of concert promoter AEG Live, said Jackson's highly anticipated memorial would be held at the rock concert and sporting venue, the Staples Center, in Downtown Los Angeles. Jackson, 50, died a week ago of cardiac arrest. (Reporting by Jill Serjeant; editing by Todd Eastham)