The wedding bells for Justin Timberlake and Jessica Biel are on the go as the two are believed to marry this week in Italy.

Justin Timberlake and Jessica Biel got engaged December of last year. And according to reports from US Weekly magazine, the two are set to marry in a private ceremony in the southern region of Italy.

A source told the publication that a pre-wedding bash already happened Wednesday evening when a display of fireworks blasted off the sky in the region. A mix of colors lit up the sky of a seaside Italian town where Jessica and Justin are said to be celebrating. Apart from the fireworks, a large van and several spotlights were also spotted.

The source told US Weekly that Timberlake and Biel are taking "extra precautions" to keep their nuptials a secret. Meanwhile spokespersons of the two have not yet made any statements.

Justin and Jessica got engaged in December after the singer/actor proposed on the mountains of Jackson in Wyoming. Justin reportedly celebrated his bachelor party last September with photos of the singer partying with a bunch of his male friends surfaced on the web. They were first snapped in Las Vegas then later in Cabo San Lucas, Mexico.

Just recently, JT spilled details about how he asked Jessica for a date. The singer turned actor definitely sounded smitten while talking about his ladylove.

"I did it the old fashion way - by telephone. That's something I learned from both my stepdad and my grandfather - that there is a thing called chivalry and it doesn't have to die with the birth of the internet," he said. "The way I see it, if you're asking a girl out on a date, it's only right to do it in a way that she can hear your voice."

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Justin Timberlake Reveals How He Makes Relationship with Jessica Biel Work: 'I let her have her way in everything'