Inside Justin Timberlake's Las Vegas Bachelor Party

WENNWENN

Justin Timberlake brought his still-single 'SexyBack' as he celebrated his last days of freedom before tying the knot with Jessica Biel.

Thursday night, the Trouble With the Curve star was celebrated by 20 of his male friends who “took over the dance floor” at Tryst nightclub at the Wynn Las Vegas, a source tells Entertainmentwise.com.

Inside Justin Timberlake's Las Vegas Bachelor PartyInside Justin Timberlake's Las Vegas Bachelor Party

The singer-turned-actor, 31, and his all-guy posse sipped on cocktails – including Timberlake’s own beverage, 901 Tequila – as they partied the night away until the early morning hours to tunes spun by DJ Spider.

Timberlake & Co. were “very polite,” according to the source. (Ryan Seacrest was also hanging out separately with a couple of friends, sitting near the club’s 90-foot waterfall.)

Back in December, Timberlake proposed to his girlfriend of five years Jessica Biel, 30, as they vacationed in the Jackson Hole, Wyoming.

The engaged couple have yet to reveal the actual date for their upcoming nuptials, but it’s a possibility that the soon-to-be Mr. and Mrs. Timberlake’s big day isn’t that far away.

PHOTOS: Justin Timberlake and Amy Adams at Trouble With the Curve premiere in Los Angeles 

Robert Pattinson Thinks That 'Most Actors Are Vain Morons', But Insists That He's Not One Of Them!
Gwen Stefani: 'Gavin Rossdale's Never Been A Fan Of What We Do'
J.K Rowling Admits To Having Therapy 'To Cope With Success Of Harry Potter'