Jessica Simpson burst into tears when her fiance Eric Johnson popped the question earlier this month (Nov10) because his marriage proposal came as "a total surprise".
The sports star asked for Simpson's hand in marriage on 11 November (10) after six months of dating, and the singer admits she had no idea what her partner was planning.
Simpson reveals Johnson requested her parents' permission before asking her to marry him, and she was so overwhelmed by the romantic gesture she couldn't stop crying.
She tells America's The Early Show, "(He) had a plan a long time ago. He had a (talk) with my mom and dad about it... He was a gentleman about it.
"(It was) a total surprise. I had to sit on his knee. I was shocked. To really get what was happening... I said 'Yes' and we both definitely were teary-eyed. I didn't even try the ring on until five minutes in. I just sat there and cried with him."
Simpson was delighted with Johnson's decision to buy her a ruby ring instead of a traditional diamond, because the gem symbolises her birth stone, and she also wants their wedding ceremony to be "different" because she has already walked down the aisle once before.
She adds, "I've already done the traditional thing. I wanted to do something that was different."
Simpson was previously wed to Nick Lachey. They divorced in 2006 after three years of marriage.