Wilmer Valderrama

Washington DC was flooded with famous faces over the weekend for the 2013 presidential inauguration! The celebrities were more than happy to share their snaps through social media.

Alicia Keys' husband, Swizz Beatz, gushed over his hug with President Barack Obama during The Inaugural Ball. Katy Perry and John Mayer were also at the Ball and snapped a quick photo with Eric Benet and his daughter. At the swearing-in ceremony, Beyoncé Knowles sang the national anthem — it has since been reported that she lip-synched — but not before she got a quick pic with her mum, Tina. Wilmer Valderrama sat in the audience in front of the US Capitol to watch Obama give his big speech.

Click through for more great celebrity social-media photos from the inauguration celebrations.

Some of the international names who were flown in for the launch party of Sydney’s Marquee nightclub on Friday night took the opportunity to see some of Sydney Harbour on a boat ride yesterday. Paris Hilton, whose boyfriend DJ Afrojack provided some entertainment on Friday, stripped down to a printed cut-out one-piece and sunned herself on the deck. She also caught up with Sharni Vinson, who boarded with her camera-toting beau Kellan Lutz. Joe Jonas wore another bright pink top for the outing and chatted with Wilmer Valderrama, who seemed to be his purple carpet buddy at the Marquee opening. Other stars such as Nick and Vanessa Lachey and Ashlee Simpson flew out of the country on Saturday — Ashlee rushed home to make sure she didn’t miss the birth of her sister Jessica Simpson’s baby!

The opening night of Marquee, the brand new nightclub at The Star in Pyrmont, Sydney, brought out some of the biggest names in Hollywood and Australia. Local stars kicked things off on the purple carpet at 8:30 p.m., where they posed for photos and spoke with media. The super-bright lights had a sweltering effect on many of the celebrities, who tried to keep cool and headed straight into the club after their press duties. We spoke to heaps of the stars on their way in, including Jodi Gordon, Ricki-Lee Coulter, Erin McNaught, Laura Csortan, Rebecca Breeds and Luke Mitchell, Erika Heynatz and more — most of them were looking forward to music from Afrojack and LMFAO’s Red Foo, and a few said they were excited to see will.i.am, who will hit the decks for tonight’s public opening.

At around 10 p.m. the international stars arrived — Isabel Lucas told us, “I was excited to come because I was allowed to bring my dad. We’ve had a really lovely time. I haven’t come to Sydney for quite a while. It will be good to spend time with friends.” Inside the party we saw her hanging with former Home and Away co-star Rhys Wakefield. She also revealed that she’ll be participating in Earth Hour tonight at 8:30. Nick Lachey stayed close to his pregnant wife Vanessa, who was glowing in a loose-fitting black and white dress. A super-sparkly Paris Hilton, dressed in Rachel Gilbert, worked her signature poses against the media wall and was rushed inside ahead of boyfriend Afrojack’s set. Wilmer Valderrama and Joe Jonas hit the purple carpet at the same time and did some of their interviews together, while we spotted Ashlee Simpson and Minka Kelly — who both indulged in some retail therapy on Oxford St earlier in the day — sitting together inside the venue.

Kellan Lutz told us he goes to Marquee in Vegas “all the time” when he’s there, and that he was keen to hit the dance floor with girlfriend Sharni Vinson, saying, “I’m lucky enough to be dating one of the best dancers in the world.” Aje-clad Sharni hadn’t been to a Marquee club before and joked that her dress presented “certain barriers” when it came to dancing. She added, “The vibe is already huge, so I’m feeling it’s going to be a great night.”

To celebrate the opening of Marquee in Sydney, a star-studded VIP party is being thrown tonight. And when we say star-studded, we mean heaps of Hollywood stars have flown in just for the bash. Marquee, a $20 million nightclub that’s already a celebrity hotspot in Vegas, is opening at The Star in Pyrmont, and joining local stars such as Erin McNaught, Isabel Lucas, Jodi Gordon, Didier Cohen and Alex Perry are the likes of Paris Hilton, Nick and Vanessa Lachey, Ashlee Simpson, Kellan Lutz and Sharni Vinson, Abbie Cornish, Joe Jonas, Slash, Minka Kelly, Wilmer Valderrama and more. Paris’ boyfriend Afrojack and the LMFAO’s Red Foo will also be hitting the decks to DJ, so you can imagine that if there’s any party anyone wants to be at tonight, it’s this one! The venue opens to the public tomorrow, with will.i.am from the Black Eyed Peas on hand for music duties. Lots of the visiting celebs have already arrived in Sydney — see who got snapped at the airport!