Taylor Swift looks ultra-chic in a bright red knitted hat and matching red lips on the streets of Paris.

Out walking her dog, Sienna Miller beats the cold with a white boho knitted hat.

Style queen Kylie Minogue knows how to work the winter look with this chunky knitted turban and Chanel tweed coat.

Sarah Jessica Parker - on the school run in New York - keeps it casual in a dark blue knitted hat and cable knit cardigan.

Russell Brand covers his dark curls with a trendy men’s knitted hat, which we've noticed he doesn't confine just to the winter chill.