Sexy Stars: Naomi Campbell has one of the sexiest looks of the week in plunging dress

Talk about sexy stars!

Julianne Hough put her best foot forward over the weekend in a power blue dress with a slit up-to-there. The "DWTS" star is no stranger to showing off her dancing legs, but she looked out of this world this week with this style.

Model Naomi Campbell flaunted her enviable figure in a jaw-dropping dress with a plunging sheer neckline at New York Fashion Week this week. The 46-year-old's sequined gown was by far one of the hottest looks of the week, but she was nearly challenged by some close sexy contenders.

Natalie Portman, who just revealed she's expecting baby No. 2, wowed in back-to-back looks this week at the Venice Film Festival. The expectant momma rocked a black and white number with a pretty neckline and also donned a figure-hugging, white gown that revealed her growing baby bump.

Model Karlie Kloss was also on a hot streak this week, rocking a backless, silver, sequined gown and some sultry makeup.

From New York Fashion Week to the Venice Film Festival, there were tons of incredible ensembles worth talking about this week.

Check them all out below: