Close impressed with her knowledge of the song from School Daze, and then shocked the crowd at Union Station in Los Angeles and audiences at home when she got up to demonstrate "Da Butt" in its full glory.
ET learned after the show that the skit was planned with all involved, but that Close's dance was an impromptu surprise. The actress confirmed as much on Instagram while reflecting on the legendary moment.
"We had the MOST FUN at our table at the Oscars last night. Chris Terrio, one of my best friends, who won an Oscar for the screenplay of ARGO, was my gallant escort. Daniel Kaluuya and Darrell Britt-Gibson were wonderful table mates," she began. "I knew that Lil Rel was going to quiz me about Da Butt and all three guys helped me run through what I was to say."
"Darrell insisted that I mention the Backyard Band, on top of E.U., Suga Bear and the whole DMV. I googled 'Da Butt' and watched Spike's music video so when Lil Rel asked if I could do the dance...you can actually see me think of the video. That part was completely spontaneous," Close said. "Daniel, Darrell and Chris egged me on!!! It was ALL their fault."