Shock jock Howard Stern is planning a big surprise when he launches his new satellite radio show in January (09JAN06) - by revealing his most embarrassing moment.

The DJ, who broadcast his final terrestrial show for the ClearChannel network this morning (16DEC05), is already planning ahead for his first Sirius network programme next year.

He and his radio show regulars will all reveal a deep, dark secret about themselves, without telling radio listeners exactly who the revelation belongs to.

Stern explains, "What I am going to reveal on January 9th will surprise my audience. We're gonna reveal all these embarrassing things but we're not going to tell you who they belong to.

"Then we're gonna wait a week, let everyone speculate, before we do the reveal. It's gonna be a really great show."

And he's convinced his Sirius debut will be one of his most controversial shows ever: "One of us had to consult a lawyer before we could reveal a secret."