'I don't wear a bra' Rihanna reveals

Rihanna likes to shock and for her third cover of US Vogue she hasn't broken the habit.

The Barbados beauty told the March issue of the fashion bible, 'If I'm wearing a top, I don't wear a bra. If I'm wearing a bra, I just wear a bra.'

The 25-year-old also revealed to the massive 648-page monthly - in which she modeled suits, sequined slacks and slinky dresses - she dressed like a boy as a child.

The cover girl explained she didn't take to girlish clothes because she really wasn't around her gender growing up.

'When I was 13 or 14, I didn't want to wear what my mother wanted me to wear,' she shared.

'I was very much a boy in my style, my demeanor. All my friends were guys. I loved things that boys did. It was my way of rebelling. I wanted to dress like my brother. After a while, it was just easier for Mom to dress us both the same.

Looks like she's making up for lost time.

Now the star is always playing the part of the goddess. And she's suffering for style in four-inch heels that are de rigueur for the bombshell these days.

'It's not about pain,' she allowed. 'It's about the commitment. I say to myself, "I want to look like this," and worry about the pain later.'

The MTV staple added: 'I've had nights I had to tiptoe home and the balls of my feet wouldn't even allow me to stand.'

On the cover, the Stay singer made a fierce impression as she dressed rock 'n' roll chic in a black cropped sheer top and sequined light blue denim jeans.

The We Found Love star proudly showed off her enviable figure as she put one hand up to her pixie haircut and the other in her belt loop. The only jewelry she displayed was ear cuffs.

Very little makeup covers her face, giving off a boyish look, which must have been what she strived for as a child.

Inside, she gets much more feminine. The Grammy favorite brings edge to the shoot - photographed by David Sims - in the eight page layout.

In one shot she's in a black Alexander McQueen crocodile bra top with a gold accessory that resembles a harness.

The top shows off her elaborate Egyptian tattoo. A red and black belted skirt tops off the ensemble but it's the gold helmet, which could double as a mixing bowl, that steals the show.

In another shot she is wearing Givenchy copper-colored sequined slacks with an over-sized black top that exposes her belly button.

Then there is a black Alexander Wang suit with over stitch, closed only at the top, exposing part of her chest.

Her best look is with her hair slicked down and wearing a bejeweled green and black spaghetti strapped dress by Miu Miu.

In all the of the eight set ups, the R&B goddess shows off her various tattoos.

The ex-girlfriend of Chris Brown appeared on Vogue's April 2011 cover, on which she had red hair, and the November 2012 cover, for which she looked feminine in a red dress.

The looker has been pulling off some pretty amazing looks in real life too. On Monday she stepped out for a shopping spree in Beverly Hills in a tight white dress and gold chain cuffs. She also shared a photo of herself on Instagram in a long, beautifully embellished coat.

Her next performance won't be until April 16 in Dallas, Texas.