Jay Z & Beyoncé
Beyoncé hosts a star-studded party in New York City on Sept. 5, 2016. The bash ended at 5 a.m. the next morning.
Beyoncé & Detail
"We did it !!" the music producer wrote on Instagram. "@beyonce Happy Birthday No say say."
Kelly Rowland & LaLa Anthony
The Destiny's Child singer channeled Donna Summer as she posed with her pal.
Alicia Keys & Swizz Beatz
After attending Kanye West's concert at Madison Square Garden, the couple headed to Midtown to get down with 'Yonce.
Usher & Jay Z
The singer and rapper wore wigs to get in the '70s spirit.
Michelle Williams & Diandre Tristan
The Destiny's Child singer and her stylist dressed as Sonny and Cher. "Had to come ALL the way through for [Bey]'s Soul Train themed party!!" Williams wrote on Instagram.
Sean "Diddy Combs," June Ambrose & Cassie
"Guess who was the chef in the kitchen tonight!" Ambrose wrote on Instagram. "Ask @iamdiddy & @iamdiddy for the ingredients! #WillieEarl."
Beyoncé & Chance the Rapper
"Happy bday TT!" the rapper wrote on Twitter. "You are so good to me! @Beyonce."
Chloe & Halle
"we got soullllll," the musical duo wrote on Instagram.
Alicia Keys & Swizz Beatz
"HBD my virgo sis Beyoncé," the music producer wrote on Instaram. "date night at the soul train party with my Love."
Chanel Iman, Jourdan Dunn,Tyrone Wells & Joan Smalls
"My GIRLZ," Hunter wrote on Instagram.
Kelly Rowland, Tyrone Wells & Serena Williams
LaLa Anthony & Cassie
"@lala & @cassie bought disco to the dance floor tonight! #soultrain series," stylist June Ambrose wrote on Instagram.
Usher & Detail
"We partied hard," the music producer wrote on Instagram.