Update 9/13/13:
It's official! Although Jessica Biel and Justin Timberlake tied the knot nearly a year ago, she has finally changed her last name to Timberlake as of this week. And we can't imagine what took the 7th Heaven alum so long to make the switch. Heck, if we were married to Mistah JT, we'd be screaming it from the rooftop, tattooing it on our arms, and wearing a suit and tie all the time so people knew we took it very seriously

A source told Life & Style, "It's all official! The paperwork is done and she's now legally Jessica Timberlake." Are you happy to hear that she's sporting his name officially?

Original Story 10/25/12
Now that Jessica Biel and Justin Timberlake
have tied the knot, will Jessica take her actor-slash-singer husband’s last name?

Yep, she’s doing it! “I’m changing my name,” Jessica dishes to People. "My professional name will still be the same, but for life, yes, I think it sounds great. I think I really won the jackpot of names."

Justin and Jessica Timberlake. That’s almost too precious.

"It's hard to find that one person in the world," she continues. "Once you find that person, go for it. That kind of commitment is very special."

And it’s even more special when “that one person in the world” is the guy who literally brought sexy back.

Source: People / Life & Style

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