"Yes, I'm changing my name," the 30-year-old Total Recall star confirmed to People magazine.
But for the sake of Hollywood, she'll still show up in movie credits as Jessica Biel.
"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," Jessica added.
Speaking of jackpots, JT and JT (that's not annoying at all) reportedly forked out $6 million on their nuptials in southern Italy last week.
They had around 100 guests watch them tie the knot at a luxury resort.
The newlyweds sold the official pics and interview toPeople magazine for $300,000.
"It's hard to find that one person in the world," Jessica said.
"Once you find that person, go for it. That kind of commitment is very special".
Hubbie Justin showed real commitment by flying a piece of the almond and coconut wedding cake back to the US for his grandpa and grandma who couldn't make it for the big day.
At the ceremony, Justin sang his 1997 'N Sync ballad '(God Must Have Spent) A Little More Time on You' to his bride.
Does that make you feel 'N Sick or just 'N-vious?
In pics: Mega-celebrity weddings