The TV star and BGT judge stepped in the capital wearing a little white and nude number, which flattered her figure perfectly and featured an exposed zip running down the back.
Clearly in the mood to show off her outfit to the max, Amanda ditched her coat and strutted her stuff down the red carpet so confidently that you'd never guess it was winter!
Perhaps she was still feeling warm from her recent holiday?
Last month, Amanda jetted abroad for some sunshine with her two daughters Alexa and Hollie Rose and was seen showing off her enviable bikini bod in a two piece while walking along the sand.
She finished off today's look with a pair of smart pointed heels and a statement gold watch.
Meanwhile, fellow BGT judge Alesha Dixon proved to be a bit more on our wavelength, as she covered up for the auditions and protected herself from the London chill.
She layered a textured grey coat over a white top and light denim jeans and completed her outfit with a pair of white peep-toe heels.
The former pop singer also livened up her look with a bright red lipstick.
Last October, Alesha gave birth to her first child, daughter Azura Siena and she has been using these red carpet appearances to show off her impressive post-pregnancy figure.
Although she kept snug in jeans and a large coat today, the 35-year-old displayed her post-baby curves in a sizzling orange dress earlier this month, proving that she and Amanda are both yummy mummies!
Whose outfit do you prefer: Amanda or Alesha's? Let us know below, as the best comment from across the website each week wins £50!
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