“I didnt put in some things that needed to be in.”

Cheris finally feelingstrong enoughto share all the juicy details about her legendary life in her forthcoming memoir.

I just totally chickened out, Cher confessed on Thursdays episode ofThe Tonight Show.

THE TONIGHT SHOW STARRING JIMMY FALLON – Episode 1882 – Pictured: (l-r) Singer Cher during an interview with host Jimmy Fallon

Cher on ‘The Tonight Show’.Todd Owyoung/NBC via Getty Images

I didnt put in some things that needed to be in.

You gotta do it, hostJimmy Fallonagreed.

In response, Cher simply closed her eyes and shook her head.

If its a big book!

Todd Owyoung/NBC via Getty Images

TheMamma Mia!

Here We Go Againstar previously toldThe Hollywood Reporterin August that she was so close to finishing the book.

Thats difficult too, but were so close.

Watch Cher discuss her memoir and her Christmas album in the clip above.