The Britain’s Got Talent judge, 49, famously has a wardrobe stuffed with risque gowns – and she dusted one off for her latest sizzling snap.
She posed in the lift on Instagram, her bra and pants visible through the transparent outfit, writing: “Going up!!!”
The dress attracted hundreds of admirers within seconds, with one follower writing: “OH. MY. GOD JAW DROPPING!.”
It also picked up plenty of celebrity fans as Alesha Dixon told Amanda: “Love this honey! .”
Girls Aloud’s Kimberley Walsh added: “Gorgeous ” while former X Factor host Kate Thornton posted: “That dress is a keeper! Love it x.”
The snap appeared days after Amanda flashed her legs sitting on some steps as she teased a new TV project.
She captioned the post: “Grateful to be filming and cannot wait for you to be able to watch next year!
“Appreciate being able to continue working with every bit of covid safety you could think of!!! #wecandothis.”
Amanda’s famous pals were among her followers to be blown away by the photo, with Emma Willis simply commenting: “LEGS!!!!! ”