12 Then-and-Now Photos of Celebrity Couples on Their First Red Carpet Together vs. Now

Celebrity couples like Justin Timberlake and Jessica Biel have been going strong for years, and whenever they hit the red carpet together, they're sure to make heads turn. But it's pretty fascinating to see how much they've changed over time!

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Click through the gallery to see shocking then-and-now pics of celebrity couples on the red carpet!