Harry Potter's hot-and-cold-running school chum Hermione Granger may not be known for her sense of style, but the British actress Emma Watson couldn't be more different.

The 17-year-old actress was transformed into a '50 rock chick for a fashion shoot in the January issue of the U.K. edition of InStyle magazine, complete with cupcakes and cashmere twin sets.

For a behind-the-scenes video peek at the session, click here.

In one image from the 10-page spread, Emma Watson poses in a designer prom dress, teamed with a cropped leather jacket and towering red patent high heels – a look the teen likes.

"I wish I could dress like this every day of my life!" she says.

In between playing dress up, Emma Watson is also juggling driving lessons with studying for her college-entrance exams amid a whirlwind of celebrations.

"Literally for the last three weekends I've been at an 18th birthday party," she says of her social life. With filming of the next Potter adventure, Harry Potter and the Half-Blood Prince due to begin soon for a November 2008 release, this is one seriously busy, yet fashionable teen. Emma Watson