From bombers to bulky knits, I just can’t get enough of these stars' latest cold-weather fashion magic. With a little attention to accessories, each of these low-key layered looks is easy to replicate and are worth testing out.

In LA, Christina Aguilera trades the standard black bomber for a sapphire green version and bold graphic scarf for extra warmth.

Most stylish mom Gwen Stefani is a fan of this military inspired trench in loden green – perfect for toting son Zuma (pictured) around chilly London. Stefani also ties on a scarf, but hers is in muted shades of grey.

For LA’s cooler but not cold temps, Diane Kruger's chunky double-breasted “grandpa” sweater is anything but stodgy. The cool knit paired with leggings gives off a Parisian gamine look.

Keira Knightley’s shearling Burberry coat is just the right shade of warm cocoa to compliment a pair of pale denim skinnies.

Photos: David Aguilera/FilmMagic; Jack/FilmMagic; Buzzfoto/FilmMagic; Danny Martindale/FilmMagic