Joe Jonas performs his solo debut album "FastLife" at Haze Nightclub.

Pop star Joe Jonas hit Las Vegas in style Saturday night to celebrate his birthday Aug. 15. To kick off the day, Jonas and his pals lounged poolside at Liquid Pool Lounge at Aria. The birthday boy spent most of Saturday afternoon relaxing poolside in his VIP cabana with his friends, soaking up the desert sun’s rays and munching on Liquid’s specialty Mahi Mahi tacos as well as salsa and chips. Female fans surrounded the VIP area, trying to get a glimpse of the heartthrob in his bathing suit.

Following a day of fun-in-the-sun, Jonas and his entourage of friends headed to Yellowtail Japanese Restaurant & Lounge inside Bellagio, where they were treated to a delicious family-style meal exclusively prepared by Executive Chef Akira Back including the restaurant’s signature dish, the Big Eye Tuna Pizza.

After the Japanese feast, Jonas and his friends headed back to Aria. Before heading to Haze they made a pit stop at the popular Deuce Lounge, where Jonas and his friends played a few hands of blackjack. After about an hour, as Jonas was leaving Deuce and heading to Haze, the b-day boy was swarmed by nearly 20 female fans dying to get an autograph or photo with their favorite star. After signing a few autographs and meeting with his fans, Jonas finally made it to Haze Nightclub where he rocked the crowd with a special live set, performing tracks off of his forthcoming solo debut album FastLife, in stores next month.

Afterward the high-energy performance around 2:30 a.m., the pop superstar met up with his friends at their VIP table on the mezzanine level of Haze. Just moments later, Jonas was completely surprised when he was presented with a specialty pre-birthday cake in the shape of a bright colored keyboard. Fellow partygoers were holding up sparklers and shooting confetti into the air while toasting Jonas to another successful year. Jonas spent the rest of the evening dancing to the beats of the resident DJ IKON, mingling with friends as well as chatting with the bevy of beautify girls that were surrounding his table.

Click on the photos below to enlarge.

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