The actress revealed serious cleavage as she arrived at the Pride of Britain Awards at London’s Grosvenor House.
Wearing her blonde tresses down and straight, the 46-year-old appeared to be dangerously close to a nip slip in her eye-popping frock.
Amanda’s look was slashed to the navel and, after opting to go totally braless for the event, her assets nearly escaped the purple and white number.
The talent show judge’s dress featured bold straps with sequin embellishment throughout, but they did little to distract from her décolletage.
Amanda kept her toned pins hidden under a billowing skirt which had unusual floral detailing.
The star couldn’t resist playing with the voluminous look as she posed for photographers, before reuniting with her Britain’s Got Talent co-star Alesha Dixon.
“Wearing @basilsodaworld for tonight’s very special @prideofbritain. Jewellery: @hsternofficial. Hair and make-up: @mrvermaak. Styling: @angiesmithstyle,” Amanda told her 598,000 Instagram followers.