The Obama-Knowles love fest continues!

First Lady Michelle Obama, along with daughters Malia, 13, and Sasha, 10, hit up Beyonce's concert at Revel Beach's Ovation Hall in Atlantic City, NJ Saturday night. The performance was night two of the songstress' four-show return since giving birth to daughter Blue Ivy, her first child with husband Jay-Z, in January.

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"They sat up in a private balcony with Gayle King. Michelle was jamming out to 'Crazy in Love,'" a concertgoer tells Us Weekly. "When Beyonce told the crowd to get up and jump, [Malia and Sasha] stood and started dancing and jumping. They were shouting when Beyonce asked, 'Do girls run the world?'"

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"Together, all three of them did the 'Single Ladies' dance moves," the concertgoer adds.

(It was the second concert of the week for Malia, who was spotted cheering on Irish-British heartthrobs One Direction at their Fairfax, Va. show on Thursday.)

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In April, Beyonce, 30, wrote a public letter to President Obama's wife, 48, which she posted on her personal website. In the note, she wrote, "Michelle is the ultimate example of a truly strong African American woman.