Solange & Beyoncé On The 1's and 2's

Solange spun some records for a good cause while DJing A Party: Relief for Haiti Edition benefiting Wyclef Jean’s Yele Haiti organization at The Eldridge in New York City on Tuesday (Jan. 26). Her big sis Beyoncé, brother-in-law Jay-Z, and Michelle Williams showed up to lend their support.

“B and Jay were having a blast,” a partygoer told HollywoodLife.com (via Just Jared). “They were dancing and laughing and really into the music. Beyoncé even got on the mic and sang ‘Sweet Thing’! She and Jay were having a genuine good time.”