<i> HEEEEEEEEEEEE- EEEERE’S</i> JOHNNY!

Laurence Leamer, who penned bios of Ingrid Bergman (“As Time Goes By”) and Ron and Nancy (“Make Believe”), will be getting a six-figure advance from William Morrow for an unauthorized life story of Johnny Carson.

“It’s hard to believe that no one has done an in-depth look at Carson’s life,” Leamer said. “He’s been part of our cultural furniture for 25 years.”

But Leamer thinks he’ll have problems getting to the three-ex Mrs. Carsons--it’s rumored their divorce settlements stipulate that they not talk about their collective ex.