"Extra" spotted Rosie O'Donnell and Madonna out in New York enjoying a night on the town, taking in a movie and swatting away the paparazzi.

But Rosie doesn't want fans to get the wrong idea.

She writes in the first chapter of "Celebrity Detox" that she and Madonna are just friends and have never been anything more.

"We were sisters from the moment we met," she writes. "There was never anything sexual about it."