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Joe Jonas, Nick Jonas

Courtesy David Becker/GettyImages

Joe Jonas knows how to do Las Vegas right!

The former Jonas Brothers member headed to the popular summer destination this weekend to celebrate his 25th birthday.

The festivities kicked off Friday night when the singer joined brothers Kevin Jonas and Nick Jonas for a family dinner at CRUSH eat, drink, love inside the MGM Grand resort. A source tells E! News the birthday boy and about 20 of his closest friends enjoyed tequila shots and a variety of signature dishes from Chef Billy DeMarco.

Later that night, Joe and his friends stopped by David Copperfield's magic show and Beacher's Madhouse.

Joe Jonas

Courtesy of Bryan Steffy/Getty Images

Legendary showman Jeff Beacher pulled out all the stops for the birthday boy including a special lap dance by the world's smallest stripper, Little Spinner, and a mini Miley Cyrus stripper performance. The group also enjoyed Beau Joie Champagne throughout the night.

The party continued Saturday as Nick and his girlfriend, Miss Universe Olivia Culpo, joined Joe for an afternoon at Encore Beach Club at Wynn Las Vegas. 

According to an eyewitness, Nick and Olivia were being very affectionate towards one another.

"She was giving him pecks on the cheek and there was lots of hand holding," the source tells E! News. "He was being very sweet with her."

Nick Jonas, Olivia Culpo

Courtesy of Bryan Steffy/Getty Images

And as any Las Vegas visitor knows, the fun always continues into the night. Joe and his friends later headed to XS nightclub where they danced till close to 3 a.m.

"My birthday so far is killer," Joe Instagrammed over the weekend. Sounds like someone had a great time! 

(Originally published Sunday. August 17 at 2:50 p.m. PST)

Joe Jonas

Courtesy of Bryan Steffy/Getty Images