Kristen Stewart might be low-key, but she is no wallflower when it comes to fashion. The Twilight actress has worn a human skeleton-inspired gown, pranced around in sneakers to red carpet events and even chopped off all her hair. Her pants at the Cannes Film Festival on Wednesday were just as show-stopping.

Kristen Stewart joined Kirsten Dunst on the red carpet at Cannes on Wednesday to promote their film On The Road and the two wore dramatically different outfits.

The 22-year-old raven-haired actress flaunted a pair of lemon-yellow Balenciaga pants with a multicolor floral design and ankle zippers for her photo call appearance. She paired the eye-popping pants, which sell for around £625 in stores, with a white Juicy Couture tank top and a black Rebecca Minkoff jacket. On her feet were a pair of simple black pumps.

Stewart was tapped by Nicholas Ghesquiere as the face of Balenciaga in January. She wore the label to the Met Ball earlier this month; she sat front row at the AW 2012 show in March; and is a devoted fan of the fashion house. 

Balenciaga has always stood out to me. Even when I first began to consider fashion and admittedly rarely knew the brand I was wearing, I always recognized and loved Balenciaga. The brand is just cool. That's the way it is. I feel drawn to it. It provokes on a number of levels. It isn't afraid or contrived. It hits a very cool balance, always, Stewart told reporters earlier this year.

Kirsten Dunst went for a far more whimsical look - a white lace Dolce & Gabbana dress from the line's Fall 2012 collection. The white, tea-length shimmering dress with puffed sleeves was made even primmer with a pair of Charlotte Olympia pumps and a floral headband wrapped around her blonde locks.

Stewart stuck with Balenciaga for the red carpet later on in the day, as well. This time she went with a more dramatic, leaf-printed gown by Nicholas Ghesquiere that featured a V-neck and thigh-high split. Stewart wore her dark hair loose and a long simple gold necklace around her neck.

Dunst opted for a fuchsia Christian Dior gown from the Pre-Fall 2012 collection. She accessorized her column gown with a black belt and sparkling clutch.

What do you think of Kristen Stewart's Balenciaga pants? A bold fashion risk or a total miss?