The 'New York, New York' singer - whose fourth wedding, to concert promoter David Gest, took place in 2002, with their pal Michael acting as best man - spoke to the late pop legend after the lavish ceremony and begged him to explain why he had allowed to go through with it.
She said: "I grabbed him when I saw him when I got out of there. And I said, 'Why did you let me marry this idiot?' He said, 'I thought you liked him! You look so happy. Your dress was so beautiful. I don't know. Let me go!' And I said, 'Michael, how could you.' He said, 'It's over, relax.' Then we looked at each other and we started to laugh, we really started to laugh."
Liza - who divorced David just 16 months later - refuses to refer to her former spouse by his name and only recently discovered he hadn't paid a penny towards the star-studded nuptials.
She explained in an interview on 'The Joy Behar Show': "You know something terrible? I only found out I paid for that wedding about five months ago. I said to somebody, 'Well - I'll never mention his name again - but at least it was pretty. It should be it cost however much money it cost.' And they said, 'Yeah, well you paid for it.' Did I think he had paid for it? Oh sure, I didn't know."
Although the 64-year-old star - who has also been married to Peter Allen, Jack Haley Jr. and Mark Gero - regrets her most recent marriage, she finds many aspects of the relationship amusing.
She added: "Some of the things make me laugh so hard when I look back. It was funny though, it was really funny."