It has been let slip that model Alessandra Ambrosio will wear the $2.5 million “Fantasy Bra” during this year’s Victoria’s Secret fashion show.

Details about the fashion show, dubbed the “sexiest night on television,” are usually kept under heavy wraps, but the New York Post reports that someone at the famous lingerie retailer accidentally uploaded a clip of Ambrosio modeling the “Fantasy Bra” within a video called “Victoria’s Secret Angels Talk Seduction.”

News of the blunder spread on Twitter and the video was quickly removed and re-uploaded, sans the telltale clip.

The Victoria Secret fashion show is famous for showcasing a “Fantasy Bra,” created custom each year by London jewelers. Wearing the bra has been a coveted honor among Victoria’s Secret Angels ever since Claudia Schiffer modeled the inaugural "Million Dollar Miracle Bra" in 1996, according to the Huffington Post.

Angel favorites such as Heidi Klum, Gisele Bundchen, and Tyra Banks have all modeled the “Fantasty Bra.” Most recently, Australian beauty Miranda Kerr held the honor last year’s fashion show.

Each bra is an arrangement of fine jewels, costing millions of dollars. The most expensive was worn by Gisele Bündchen in 2000. Her “Red Hot Fantasy Bra” is worth a whopping $15 million.

Victoria’s Secret intended to reveal this year’s “Floral Fantasy Bra” and its model at their SoHo store on Thursday. But there are no words on how the leak will affect these plans. A Victoria’s Secret rep declined comment to the Post.

The show will be taped in early November and will air on CBS on Dec. 4, featuring performances by Rihanna and Justin Bieber.