Inside Beyonce's Soul Train-Themed Birthday Party

"As E! News exclusively reported last week, the "Hold Up" singer wanted to throw a Soul Train-themed party for her 35th birthday—and that's exactly what she did. Destiny's Child members Kelly Rowland and Michelle Williams dressed up as disco divas, as did Solange Knowles. Other partygoers included June Ambrose,Carmelo Anthony, LaLa Anthony, Swizz Beatz, Cassie, Chance the Rapper, Detail, The-Dream, Jourdan Dunn, Ty Hunter, Chanel Iman, Alicia Keys, Kendrick Lamar, Joan Smalls, Serena Williams and Usher.

The party, hosted in New York City, ended at 5 a.m. Tuesday.

Beyoncé wore a sequined outfit and hit the dance floor with her husband, Jay Z. At one point, their 4-year-old daughter Blue Ivy Carter got on the mic and said, "Happy birthday, mommy!" The crowd said "aw" in unison, and Usher shared the moment via his Snapchat story. Beyoncé later addressed her guests, saying, "Thank you, everybody, for coming. You guys did such an incredible job committing, and I'm so happy to be here." To Jay Z, she said, "Thank you, baby."

Hours before the bash, Live Nation and Parkwood Entertainment announced that Beyoncé had to postpone her Sept. 7 concert in East Rutherford, N.J. "As a result of strict doctor's orders for vocal rest," the star's performance at MetLife Stadium has been postponed until Oct. 7.

Beyoncé has not publicly addressed the postponement.

Earlier that day, the singer thanked her fans for the outpouring of warm birthday wishes. "I just want to say thank you to everyone for all the beautiful and thoughtful birthday wishes," she wrote on Instagram. "I am so fortunate to have the love and support of my family, my friends, and my hive. We've grown up together and you guys continue to inspire and motivate me everyday. I'm so grateful for every challenge, every smile, every tear, every discovery, every sacrifice, every triumph, every stretch mark, every kiss, every scar. I strive to make you proud."

Beyoncé added, "I love YOOOUUUU!!!"

Michelle Williams with her stylist Diandre Tristan

On Sunday, Beyoncé hit up the Made in America Festival in Philadelphia. The "Sorry" singer watched the concert from the VIP section alongside Jay Z and Rowland; First Daughters Malia Obamaand Sasha Obama also enjoyed the show nearby. "We are all going to be celebrating this festival and Beyoncé's birthday!" Rowland told E! News just hours before the headliners took the stage. "We are all going to be together," she added. "I'm getting ready to see her now!"

Diddy, with girlfriend Cassie accompanied by stylist and fashion maven, June Ambrose

So, what did Rowland get Queen Bey for her birthday?

"Well, diamonds are a girl's best friend," she teased. "I got her diamonds!"

Check out more pics from the super lit birthday party below!

Stylist Tyrone & Models: Chanel Iman, Jourdan Dunn and Joan Smalls

"Well, diamonds are a girl's best friend," she teased. "I got her diamonds!"