Chilly front! Katharine McPhee leaves little to the imagination in plunging top at Diane Von Furstenberg NYFW show

PUBLISHED: 08:45, 11 February 2013 | UPDATED: 09:20, 11 February 2013

With front rows full of fashion-conscious stars, it's hard to stand out at New York Fashion Week.

But actress Katharine McPhee made sure that she was centre of attention at Diane Von Furstenberg's show on Sunday, wearing a long-sleeved white top with a neckline that plunged down to her waist, despite the freezing weather.

Leaving very little to the imagination, the 28-year-old was careful to stay upright in case of a wardrobe malfunction while she dashed through the streets of the city to the Lincoln Centre.

Plunging neckline: Katharine McPhee goes braless in a plunging white top at the Diane Von Furstenberg NYFW show on Sunday

Despite the fact that New York is currently under three feet of snow, the former American Idol star decided against a scarf as she headed to the show.

But the singer did wear a stylish black coat over her fashion-forward outfit, and matched the gaping white top with a pair of black cigarette pants with an embellished waistband.

Clearly not feeling the cold, Katharine dashed through Manhattan holding a tiny clutch bag in one hand and her phone clasped tightly in the other.

Gaping: The actress and singer seems confident about the fact that she's flashing a little too much flesh

Just preserving her modesty: The former American Idol star keeps everything covered by the skin of her teeth

I'm with the designer: Katharine slips backstage to congratulate designer Diane Von Furstenberg after the show

The Smash star wore a chic jacket over the dramatic top as she sat front row at the designer's show, before popping backstage afterwards to congratulate her.

Leaving all of the focus on her eye-catching neckline, the singer didn't wear any jewellery and kept her make-up natural-looking and light.

She curled her dark hair in loose ringlets, keeping her whole look minimalistic and simple, but made an outfit change just a few hours later for the Zac Posen show.

Style-conscious star: The actress tweets a picture of herself with the designer

Mingling: Katharine chats to Pretty Little Liars star Shay Mitchell backstage after the show

On trend: Both Katharine and Shay opt for chic cigarette pants for their day at NYFW

After chatting to DVF backstage, Katharine mingled with Pretty Little Liars Shay Mitchell, who was wearing bubblegum-pink cigarette pants and a loose-fitting black top.

Front row regular Olivia Palermo also ducked into the show, dressed in a nay ruffled coat and thigh-high black boots.

The style maven chatted to stylist-to-the-stars Rachel Zoe, while other stars including Nicky Hilton and Cheslea Handler were seen milling around the NYFW tents.