Miley Cyrus, 21

HOT
Wearing a MM6 Maison Martin Margiela blouse and Maison Martin Margiela trousers to Z100's Jingle Ball in New York City last month

Could this be true? Cyrus is looking all grown-up in a feminine blouse and high-waisted pants. The splash of yellow on her trousers was such a refreshing and modern take on the work staple.

NOT
Wearing a vintage Jean Paul Gaultier gown to the 2013 Bambi Awards in Berlin last month

We cannot decide which is worse, Cyrus in a hoochie-looking outfit or dressing like an alien.

The vintage Jean Paul Gaultier gown, with its exaggerated cuffs and neckline, looked like a sci-fi disaster when combined with her short blonde quiff.

The oversized Chanel choker made her look even more ridiculous.

MARION COTILLARD, 38

HOT
Wearing a dress from Christian Dior at the A Thousand Times Good Night premiere in Morocco last month

The French actress earned her style stripes here. The colourful lines were a playful twist on the classic pattern. We loved how Cotillard finished off her look with a side ponytail that kept to the cheery theme.

NOT
Wearing a maxi dress from Preen at the Public Enemies presentation in Morocco last month

Was Cotillard trying to hide something around her tummy or did she just not feel like dressing up? The shapeless maxi dress and the prints looked too casual for the event. She would have looked better if the dress stopped at her knees. Here, she just looks like she is ready for bed.

~ STACEY CHIA