Former “Today” show anchor Katie Couric and Diane Sawyer are known to be rivals. And on Katie’s new tell-all book, she admitted that she “loved” getting under Diane’s skin as they battled to be the top star in morning TV news.

In her new memoir, Katie Couric slammed Diane Sawyer saying that she was so desperate to beat her in the morning TV battle that she declared – “That woman must be stopped.”

In the book, Couric did not hold back on the things that she shared. She even discussed her views about her former co-stars, including Matt Lauer and Deborah Norville as well as huge personalities such as Prince Harry and Martha Stewart. She also talked about the producers that helped her reach the status that she’s at now.

However, she talked a lot about former “Good Morning America” anchor Sawyer, 75. Couric says that she says was everything she wasn’t ‘tall, blonde, with a voice full of money.’

The 64-year-old shared in her “Going There” book that she was so serious about this that she even has a cushion with a print of this message that she got from her “Today” colleague. Couric admitted that the competition between them was at one point getting out of control. She also described in the book how she and Sawyer battled over exclusive interviews.

She also wrote that there was a time when Couric beat out Sawyer for an interview with two teens who had been abducted, Jacqueline Marris and Tamara Brooks. Even though she claimed that Sawyer portrayed herself as a devoted family woman to score the interview, she still won it. This was made possible because her team pointed out that she was a widowed mother of two girls, and on the other hand, Sawyer was a stepmother.

Couric also shared Sawyer’s infamous interview with the late celebrity singer Whitney Houston. She said that it was almost exploitative. Couric said that Sawyer used Houston’s personal troubles just to get more from her. She said, “There was a very fine line between a revealing interview and the exploitation of troubled, often traumatized people in service of tawdry tidbits and sensational sound bites (e.g., Diane bearing down on an agitated Whitney Houston about eating disorders and drug use, which yielded the memorable comeback ‘crack is whack’).”

Also, when Sawyer got the big interview with a woman who’d given birth to twins at 57, Couric said, “I wonder who she had to blow to get that.” Although it was said as a joke, it didn’t seem that way when her comment ended up in the pages of the newspapers.

Couric also said: “I’m pretty sure I speak for Diane when I say neither of us ever resorted to actual fellatio to land an interview. but we both engaged in the metaphoric kind — flattering gatekeepers, family members, and whoever else stood in the way of a big get.”

Little, Brown and Company described the book as “heartfelt, hilarious and very honest.” And based on the excerpts, we should expect to find revelations from Katie Couric that can be a bit brutal.

What are your thoughts about the contents of the book? If you have been following the rivalry between Couric and Sawyer, for sure you would enjoy reading Going There.