Jessica Simpson: Fiance Hid Ring “in a Shoe at My House” for Weeks

 Lloyd Bishop/NBCU Photo Bank

Jessica Simpson's fiance Eric Johnson was super-sneaky planning his Nov. 11 proposal.

As Simpson, 30, explained during a Tuesday appearance on the Jimmy Fallon Show, Johnson, 31, was in cahoots with her parents Joe and Tina and her little sister Ashlee Simpson-Wentz about the impending moment.

"He had talked to my dad, he had talked to my mom, he even talked to my sister. Everybody knew but me!" Simpson said, adding her family kept the secret "for about three weeks."

As for her $150,000 ring? "He kept the ring hidden in a shoe at my house," the star said of the Neil Lane bauble, a 5-carat ruby (Simpson's birthstone) flanked by 3-carat diamonds.

When he finally popped the question, "It was at my house," Simpson said. "It was romantic that he actually asked me at my house, because that's my little safe haven."

The star will be spending Thanksgiving in NYC with her hubby-to-be — and, for the first time, the native Texan will be doing it vegan style to please her health-conscious man.

"For Thanksgiving we have to make a Tofurkey!" Simpson said. "It doesn't sound right! It's gonna be jiggly and weird."

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