Be afraid, be very afraid!

Bill O'Reilly and Glenn Beck will hit the road in January for a four-night tour that will feature this unlikely double act in concert halls in Florida, South Carolina, Virginia and New York.

The "Bold and Fresh" tour promises to bring conversations of "substance" from the two TV hosts.

The Anti-Defamation League will probably have something to say about those "conversations of substance," seeing as they reckon Glenn Beck's the scariest talking head on the air.

The ADL says Beck is the "most important mainstream media figure who has repeatedly helped to stoke the fires of anti-government anger."

They say Beck is in a league of his own in stirring up the anti-government hostility since Barack Obama became President.

And they said that while Limbaugh, O'Reilly and Hannity blast Obama at every occasion, they have not offered the real extremists a platform on their shows.

They say that's why Beck is so different - and so scary.

"Beck and his guests have made a habit of demonizing President Obama and promoting conspiracy theories about his administration," the report says. "Beck has even gone so far as to make comparisons between Hitler and Obama and to promote the idea that the President is dangerous."

They cite Beck's constant claim that the U.S. is "headed toward socialism, totalitarianism beyond your wildest imagination," as part of this constant anti-government barrage from the right-wing talking head.