During a virtual appearance on “The Graham Norton Show” Friday, Lady Gaga recalled heading to Taco Bell in her $30 million Tiffany & Co. diamond necklace after the 2019 Oscars, only to be stopped by security.

“I didn’t know what was going to happen that night — I was just so happy to be there,” the 34-year-old “A Star Is Born” actress, who won Best Original Song for “Shallow,” told the host. “My sister and I were barreling through champagne backstage and when we left, I didn’t tell anyone, and I still had the diamond on.”

Naturally, Gaga was in the mood to celebrate her big win. “Everyone freaked out that I was still wearing it. When I went to Madonna’s house, security guards were side-eyeing me,” she continued.

It wasn’t until the pop star set out in search of a late-night snack, however, that the jeweler’s guards intervened: “Eventually, when we were heading to Taco Bell, my car was pulled over and Tiffany’s security politely removed it from my neck!”

Previously worn by Audrey Hepburn, the enormous cushion-cut yellow stone, dubbed the Tiffany Diamond, weighs in at 128.54 carats and is the most expensive piece of Oscars jewelry ever worn.