It was date night for Joanna Garcia and her New York Yankee hubby Nick Swisher at Beacher's Madhouse in L.A. The couple had a front row table, which they shared with close friend Jamie-Lynn Sigler. They were in good moods, sipping cocktails and enjoying the burlesque show. Garcia especially seemed to love when drag queen Vicky Vox gave a male audience member a lap dance to Rihanna's hit "S&M."

Otherwise, Garcia and Swisher mingled with friends, got into the music and even shared an affectionate moment with Swisher giving his wife kisses on the cheek. Says an onlooker: "They both seemed incredibly happy and in love."

Miley Cyrus made a fashionably late entrance to Beacher's Madhouse at the Roosevelt Hotel in Hollywood at 1 a.m. Sunday morning, showing off her new haircut and wearing high-waist jeans and a black crop top. The singer made a beeline for pal Kelly Osbourne and grabbed her to dance along to hits like "Without You" and "Superbass" while snapping pics. A few minutes later, Cyrus's boyfriend, Liam Hemsworth, arrived, and after exchanging a kiss, the couple decided to call it a night, heading out with Osbourne in tow.

Lauren Conrad hit one of her favorite haunts, Beacher's Madhouse at The Roosevelt Hotel in Hollywood, with a group of girlfriends recently. The former reality star, clad in all black, grabbed a front table and got down to songs like "Sweet Child of Mine" and "I'm the Ish." Though focused on her friends, Conrad did get excited to see former Hills costar Frankie Delgado, giving him a huge hug when he came by to say hello. After a fun-filled night, the designer made an early exit, leaving around 1 a.m. – Jennifer Garcia

Newly single Demi Lovato popped by Beacher's Madhouse at The Roosevelt Hotel in Hollywood Wednesday, grabbing a seat with pals Kim and Khloé Kardashian. The starlet was really into the stage shows, and sang along with the house auto-tune band, Pop Shop, as they played Nicki Minaj's hit "Superbass." The singer didn't seem to mind when ex Wilmer Valderrama arrived at the club, and looked on as the Kardashian sisters hit the stage when the DJ blasted the latest Jay-Z and Kanye West hits.

What a fun mom!

Demi Moore joined daughter Rumer Willis and and pals for a night out at Beacher's Madhouse in Hollywood. Moore, sans wedding ring, rocked a short black pleated skirt and black flats and sipped Red Bull at the club. At one point, she stood up on the couch and danced to theEurythmics's hit "Sweet Dreams."

Moore – who has split from husband Ashton Kutcher and was recently spotted out with model Blake Corl-Baietti – looked to be having a blast, and chatted up 90210 actor Ryan Rottman.

The rest of the time Moore stuck close to her 23-year-old daughter, giving her a huge hug and sharing a "sweet moment" at one point. The pair stayed until closing time.

No awkwardness here!

Lauren Conrad had a pleasant conversation with ex Derek Hough during a night out at Beacher's Madhouse in Hollywood. The designer was fairly reserved, dancing occasionally to the music. But she seemed giddy when he approached her table around midnight, giving him a huge hug hello and touching his face with her hands. Though they were friendly throughout the evening, an onlooker says, "It didn't appear like they were rekindling anything romantically."

Also at the show: Miley Cyrus, who spent her night dirty dancing with her beau Liam Hemsworth. Before she arrived, the Aussie actor started his evening enjoying some quality time at the club with brother Chris Hemsworth. And Joe Jonas took in the show with his usual posse of guy friends.

Zac Efron made a post-midnight stop into Beacher's Madhouse at the Hollywood Roosevelt Hotel with pals Rumer Willis and Ryan Rottman. The trio grabbed a table in the front of the club, where Efron worked the room, chatting with females who approached and producer Brian Grazer. Rumer was more into the club scene, though, climbing atop the banquette to dance to the tunes – specifically AC/DC's "You Shook Me All Night Long" – and sticking around well after Efron, who left before his pals. – Jennifer Garcia

Looking for love – or just a friend? While out at Beacher's Madhouse at the Roosevelt Hotel in Hollywood Saturday, Lauren Conrad was "very flirty" with Glee's Cory Monteith – and at one point, appeared to give the actor her number. When she wasn't chatting up the cute Canuck, Conrad, clad in a black tank top, skirt, blazer and Chanel bag, danced in her seat, chatted with friends and sipped on a cocktail. Later in the evening, her former maybe-flame Derek Hough came by, and the two hugged and had a friendly conversation before parting ways. The star finished the night with champagne, and stayed until the club closed.
– Jennifer Garcia

Zac Efron was having a ball and laughing at everyone dressed in their funny costumes during a Beacher's Madhouse performance inside the Hollywood Roosevelt Hotel. The actor gave a high-five to Big Bird, and laughed and joked along with a guy friend seated next to him. Efron mostly kicked back, relaxed and watched the show, though. Says an onlooker: he was "amused by all the acts." – Jennifer Garcia

It took Joe Jonas a little while to warm up at Beacher's Madhouse at the Hollywood Roosevelt Hotel, but once he did, the singer had a blast. Jonas arrived at 11:30 p.m. with some guy friends, and was quite amused every time a little person would fly to a table to deliver another bottle. He flirted politely with a few girls who approached his table, and even laughed when Jay-Z's "On to the Next One" – a song that pokes fun at Jonas and his brothers – came on in the club. After watching the Beacher's Babies burlesque dancers, he left at closing time.
– Jennifer Garcia