Most Talked-About Couples

Some are hush-hush, some surprise us, and others are just hot, hot, hot. Take a peek at the most fascinating celebrity duos.

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WEDDED BLISS?

Though they have their share of on-camera spats on the hit MTV show Newlyweds: Nick and Jessica, pop stars Nick Lachey and Jessica Simpson (in Santa Monica in July) say they opened up their lives to small-screen viewers "to show people how, at the end of the day, we never go to bed mad," Simpson told PEOPLE in September.