Jessica Simpson's divorce from Nick Lachey could get nasty because the pair didn't sign a pre-nuptial agreement. The Newlyweds stars - who announced their split last week - were so smitten with each other when they tied the knot in 2002 they decided against signing a pre-nup, according to the New York Post.

The popular agreement dictates who gets which assets if a couple break up. The blonde star - who is said to have raked in a staggering $35million last year - and singer Nick have been at the center of endless break-up rumors over the past six months but denied their romance was on the rocks. Last week, they admitted they were splitting up.

The pair said in a statement: "After three years of marriage, and careful thought and consideration, we have decided to part ways. This is the mutual decision of two people with an enormous amount of respect and admiration for each other. We hope that you respect our privacy during this difficult time."

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