24 year old Britney Spears will hold a press conference on Thursday, but even her closest aides have no idea what she's going to announce. Britney has not revealed what the subject matter of the press conference will be, but it is widely anticipated she will officially announce her second pregnancy with husband Kevin Federline.
Sony executive Karen Phillips says:
Britney hasn't held a press conference in so long that we know it's something big - pregnancy, a split, we're not sure. 