took the time to reflect on all the preparation that went into , which was somehow already three months ago. On Sunday, J-Lo took to Instagram to post some never-before-seen behind the scenes footage from their halftime show rehearsals.

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“I can’t believe it’s already been 3 months since the #SuperBowlLIV #Halftime Show!” she wrote. “So much has happened since then, but I wanted to share a fun peek behind the scenes at our first rehearsal with the dancers and @Shakira.” In the post, she included a handful of videos of everyone rehearsing different parts of the performance, but it was one clip of her and Shakira in particular that caught people’s attention.

In the second-to-last video, J-Lo can be seen showing Shakira how to get her butt to jiggle to its full capability. “I do it with my knees, I shake my knees,” she tells the “Hips Don’t Lie” singer, demonstrating her ass-shaking technique. “If you shake your knees, your butt goes.” J-Lo then reveals where she learned this handy trick. “My mother taught me that,” she tells Shakira. “When I was four!”

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All their hard work certainly paid off. Re-live their incredible halftime show performance to celebrate the 3-month anniversary below: