Jackie said she called up a PR and said: "It's Samantha calling, I work for Jackie O."
Jackie continued: "[The PR] was looking after a high-end jewellery store and I said, '[Jackie] would like to borrow something for a red carpet event.'"
"[The PR] never did say anything but I had a feeling that she knew it was me."
Kyle advised Jackie that she should have put on an Irish accent to help disguise herself.
Meanwhile, Kyle and Jackie O are on a high following the news that yet another set of breakfast radio rivals have been axed
Following the announcement that 2Day FM's Grant, Ed & Ash show has been cancelled, the Kyle & Jackie O Show host tweeted "Hahahahahaha" followed by "Another one bites the dust #seeya."
It's the sixth radio line-up that has been axed by 2Day FM due to low ratings since Kyle and Jackie O left the station in 2013.
Others hosts include the 2016 show with Rove McManus and Sam Frost, the Merrick Watts, Jules Lund and Sophie Monk show with Mel B, and most recently, the 2018 show with Em Rusciano, Ed Kavalee and Grant Denyer.