Jonas Brothers Celebrate Nick’s 21st Birthday at Wynn Las Vegas

Nick and girlfriend, Olivia Culpo
It was a family affair for the Jonas Brothers as they headed to Las Vegas to celebrate the youngest sibling, Nick’s 21st birthday. The group checked into Wynn Las Vegas on Saturday for a weekend excursion (Pictured: Nick Jonas and girlfriend Olivia Culpo – Photo credit: WireImage)

Nick Jonas kisses girlfriend Olivia Culpo

Nick Jonas kisses girlfriend Olivia Culpo

Photo credit: WireImage.

The adventure began at the Wynn Theater when they visited the cast of Le Reve—The Dream on Saturday evening. The performers showered Nick with early birthday wishes before his brothers, Kevin and Joe, joined him to pose for shots with the cast and the beautiful ballroom dancers.

Jonas Brothers at XS

Jonas Brothers at XS

Photo credit: WireImage.

The rocker trio were joined by their significant others for an intimate dinner at Andrea’s. Nick and girlfriend, Olivia Culpo, the former Miss USA and Miss Universe, were very playful and cuddly throughout the meal while Kevin was doting on his expecting wife Danielle the entire time. The restaurant provided signature chopsticks with their names engraved on them at the table. The group loved them and immediately posed for photos. They shared several sushi rolls including crispy tuna, special cucumber roll, spicy tuna shrimp tempura, lettuce cups, New York Strip steak, black cod, Jidori chicken and the restaurant’s signature smoked salmon.

Jonas Brothers at Andreas

Jonas Brothers at Andreas

Photo credit: WireImage.

On Sunday, the group took it easy in order to “prepare for battle” as Nick told press on the red carpet for the main event as he counted down his last minutes as a 20 year old. The brothers played golf and watched football before getting dressed to impress at the big night out.

Nick and girlfriend Olivia Culpo at Andreas

Nick and girlfriend Olivia Culpo at Andreas

Photo credit: WireImage.

A group of 25 of Nick’s closest friends and family gathered at Botero, the steakhouse at Encore around 10:30 p.m. last night for dinner. The entourage was seated on the patio to enjoy the beautiful Las Vegas evening, indulging in the restaurant’s celebrated steaks. They split several sides including truffle macaroni & cheese, ricotta gnocchi, wild mushrooms, and more.

Nick Jonas with birthday cake at XS

Nick Jonas with birthday cake at XS

Photo credit: WireImage.

At exactly midnight, Nick was watching his iPhone’s date change over to officially ring in his birthday. The group erupted in applause, while a four-tier cake was presented by the staff. The brothers showed off their skills singing, “Happy Birthday” while girlfriend Olivia snapped pictures on her phone for social media. The couple cozied up while Cheers-ing with a celebratory glass of champagne followed by a sweet kiss. A family tradition took over as Nick made the first cut of the cake and then handed the knife over to Danielle, Kevin’s wife, who has the next upcoming birthday to make the final cut before it was served to the group. Kevin was overheard explaining the tradition to their friends at the table.

Jonas Brothers at Andreas

Jonas Brothers at Andreas

Photo credit: WireImage.

Fifteen minutes after turning 21, Nick led the group to the red carpet at XS nightclub, where the brothers all snuggled up to their significant others; Nick and Olivia, Kevin and Danielle, and Joe with model girlfriend Blanda Eggenschwiler. Nick shared that he is most looking forward to some music and acting projects in the year ahead, but also being able to finally kick back at the end of the day with a beer. He shared that Olivia gave him a necklace for his birthday, while Joe had one of the most unique gifts in purchasing a pair of Frank Sinatra’s tap shoes for his younger brother. Kevin went big, getting a few chips from the Wynn casino to test his luck on the table games after the party. While Nick was very much looking for the night ahead, it had some tough competition as he shared his favorite birthday to date, a surprise wiffle ball tournament his family planned when he turned 13.

Jonas Brothers at Le Reve

Jonas Brothers at Le Reve

Photo credit: WireImage.

Fresh off of New York Fashion Week, Joe shared that his style changes a bit when heading to Sin City. He said the guys dressed to the nines for the evening’s festivities. He claimed his own 21st birthday is a challenge to remember, but brother Kevin chimed in to remind him they had the college experience for Joe’s birthday, heading to State College for a Penn State football weekend. For his own big 2-1, Kevin shared the family traveled to Cabo, always making a fun trip out of the event. With a baby on board, he joked that he’ll let his brothers plan his children’s 21st birthday parties as they will no doubt be seen as the cool uncles.

Jonas Brothers and girlfriends/wives at XS

Jonas Brothers and girlfriends/wives at XS

Photo credit: WireImage.

The group of 20 were escorted in style down the nightclub’s signature golden staircase just after 1 a.m. with 30 waitresses flanking on both sides waving light wands to direct them through the crowd. As they marched through the venue, fans tried to grab pictures of the group before they arrived on stage. Seated next to headlining DJ, Avicii even grabbed a photo with the famous family before starting his set. A second birthday cake was brought out by the XS model waitresses, themed in true Vegas style with seven tiers of poker chips, card suits, and black and red colors throughout. The group partied into the early hours of the morning in honor of the monumental celebration.

Additional celebrity sightings in separate groups last night at XS also included Liam Hemsworth, Enrique Iglesias, and Lil Jon.

Nick Jonas with cake at Botero

Nick Jonas with cake at Botero

Photo credit: WireImage.

Jonas Brothers with cast members of Le Reve

Jonas Brothers with cast members of Le Reve

Photo credit: WireImage.

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