Paris Hilton has done it. Lindsay Lohan and Nicole Richie both (barely) did it. And then there's Michelle Rodriguez, Kiefer Sutherland... Heck, this year it seems like just about every celebrity has spent a little time in the gray-bar hotel. And if Britney Spears continues her past behavior in her ongoing custody dispute, sources tell OK! she may very well end up spending some time in lockdown herself.

OK! has confirmed with sources close to the ongoing custody war between Britney and ex-hubby Kevin Federline that the pop star is — once again — scheduled next week to be deposed by K-Fed's lawyer Mark Vincent Kaplan. However, as the 25-year-old mother of two has blown off over a half-dozen previously scheduled attempts at being deposed — including two depositions ordered by the court! — many insiders are convinced that she will be a no-show for this one as well. But considering the potentially dire consequences for Brit, she might want to think twice before oversleeping or calling in sick next week.

"She could go to jail for contempt of court if she refuses to show," one legal eagle confirms to OK!. "That would be extreme for a child custody hearing, but not outside the realm of possibility." More likely, explains the courtroom insider, K-Fed's team could ask the court to impose monetary sanctions on Britney, who is already footing the bill for Kevin's legal expenses!

As things stand right now, barring any more emergency hearings, lawyers for Britney and Kevin are not due back in court until February, with the final custody hearing expected to start April 9.

[source]