After impressing viewers with a River Island skirt last week, Cat Deeley has once again showcased a stylish high-street outfit that's ideal for summer.This time, she modelled a chic polka-dot dress that has had fans swooning on social media.The 47-year-old appeared on the This Morning sofa last Thursday wearing this Whistles Moon Spot Print Midi Dress, currently available at John Lewis. While it's definitely on the pricier side, coming in at £199, its classic aesthetic and versatility make it a worthwhile investment. Whether you need a new wedding guest outfit or something for date night, this dress is a perfect choice thanks to its sophisticated navy hue, simple round neck and midi length.