What is the Best Celebrity Memoir?

I have been an avid reader for quite some time, with my favorite genres being female-led thrillers or a celebrity tell all.

In your opinion, what are some of the greatest celebrity memoirs? "Un-Sweetined" by Jodie Sweetin is at the top of my list, but "Open Book" by Jessica Simpson also is top tier.

If we're talking high drama and tea worthy of a royal party, though, it HAS to be "Mommie Dearest." Christina was NOT holding back.