the essentials: demi lovato

studs, leather, and everything you need to channel our cover girl.

Between her albums, her acting career, her gig judging The X Factor, her new book -- not to mention her latest role as NYLON's cover girl-- Demi Lovato is undisputedly coolest multi- hyphenate around.

But despite the fact that the 21-year-old is constantly juggling projects, one thing that stays the same throughout them all? Her style, obviously. It's a fusion of downtown toughness (leather, studs, and spikes) and feminine touches (classic dresses), shaken up and topped off with a technicolor twist.

The secret lies in a couple of staples: think embellished leather jackets, metallic blazers, and a rotating color wheel of rainbow hair. It's a totally winning combination--and in honor of Lovato's NYLON reign, click through the gallery below and see how to nab her style yourself.

P.S.- If you suddenly feel the urge to crank up the volume on "Heart Attack" while doing so, well, we're not going to stop you. In fact, we encourage it.