Groovy! WATCH Beyonce Dance With Jay Z At Her HUGE Star-Studded Soul Train Themed Birthday Party

It's only the best for the queen! While many celebrities headed away for the holiday weekend, the place to be was really in New York City, as Beyonce celebrated her 35th birthday at Nomad Hotel!

Bey hosted a huge Soul Train themed bash on Monday night, and her pals clearly got the memo!

Though she kept her outfit hidden beneath a long coat, we can tell it was pretty sexy as she showed plenty of cleavage in a yellow top and seemed to be wearing tiny shorts and fishnet stockings.

She had a costume change when she got inside, and ended up wearing a stylish sequined bodysuit that showed off her left leg.

The two even danced together on a Soul Train line, and Bey of course stole the show with her sexy moves!

And she's not the only one who changed clothes! Jay Z posed alongside Usher inside the party, and looked a lot different than he did when he walked in, as he resembled artist Jimi Hendrix.

Kelly Rowland brought the fierceness alongside her husband Tim Weatherspoon as they color-coordinated in bronze outfits.

Fresh off another win at the U.S. Open, Serena Williams still had enough energy to party hard with the other A-listers, and showed off her toned body in tiny black shorts.

Kendrick Lamar arrived dressed up in a long coat and flared pants, and check out those shoes!

LaLa Anthony and her husband Carmelo Anthony looked like they traveled straight from the 70s!

Alicia Keys continued with her makeup-free look as she headed to the party with Swizz Beatz in tight flare jeans and an old school top.

Usher rocked an afro for the party!

And decided to ditch his shirt — which we are not complaining about!

Not to be outdone, P. Diddy took it to a whole new level with a wig, vintage pants, and a sheer shirt!

A party wouldn't be a party without Beyonce's family! Her younger sister Solange made an appearance with her husband and son for the late night event, which didn't end until 5am! What are your thoughts on Beyonce's star-studded party? Let us know in the comments section.