As you may recall, Gwyneth Paltrow attended the Iron Man 3 premiere on Wednesday night wearing a revealing Antonio Berardi gown constructed with sheer panels. Today on Ellen, Our Lady of Goop reveals that she had to prune her ladygarden before she hit the red carpet.

Gwyneth Had to Shave Her Pubes Moments Before Wearing That Dress

Ellen: "I think there are questions here, and the question is—"

Gwyneth: "Why is your ass hanging out?"

Then she explained:

"I was doing a show and I changed there, and I went and I couldn't wear underwear. I don't think I can tell this story on TV. Well, let's just say everyone went scrambling for a razor and so I went from being the most beautiful to the most humiliated in one day. "

Ms. Paltrow, who once said the J Sisters Brazilian wax "changed her life," joked with Ellen that she "works a Seventies vibe." Ha! Retrobush.

Gwyneth also discussed her reaction to being named People magazine's World's Most Beautiful:

"My name wasn't on [the email]. …I was like, 'Oh, this is not for me.' And it was actually psychologically interesting because for a minute I really thought that someone was playing a joke on me. I talked about it with my shrink."

She also pointed out: "I'm 40 and I have two kids… It's kind of rad."

Endearing or irritating? Leaning toward the former.

[E!, NYDN, Ellen]