Jessica Simpson: I Cried for 5 Minutes After Eric Proposed

 Jamie McCarthy/WireImage for Camuto Group

Tears of joy!

Jessica Simpson says she was a shocked, blubbery mess after Eric Johnson, her beau of less than six months, proposed Nov. 11.

Opening up about her engagement during a Monday appearance on CBS' The Early Show, Simpson, 30, says Johnson's proposal was "a total surprise."

"I had to sit on his knee; I was so shocked," the singer says. "To really get what was happening."

What was her reaction when Johnson gave her a ruby, diamond and gold Neil Lane sparkler?

"I first said 'Yes!'" Simpson told Harry Smith, giggling. "I didn't even try the ring on until 5 minutes in," she explained. "I just sat there and cried with him."

She says she loves that Johnson went the unconventional route with her new sparkler — choosing the ruby, her birthstone, to make the ring stand out.

"I've already done the traditional thing," she sniffed of her ring from first husband Nick Lachey, who's also newly engaged to love Vanessa Minnillo. "I wanted to do something that was different."

She says that beau Johnson "had a plan a long time ago" to propose. "He had a [sit-down] with my mom and dad about it…He was a gentleman about it."

Now promoting a new Christmas album, she cooed that Johnson is "the best man in my life…He is just really thoughtful. Keeps me very centered. [He always] makes me feel like my feet are on the ground.'"

Added the bride-to-be: "He's the most special part of my life and my day."

Along with her parents, the engaged couple are spending their first Thanksgiving in New York City.

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