Trends in pants vary greatly depending on the current catwalks, but mostly, these days, they depend on the styles being worn by the stars. When Victoria Beckham and Kate Moss began wearing wide-leg jeans, so did thousands of their fashion followers around the world.

When Lindsay Lohan squished herself in spray-on-style skinny jeans, a look Nicole Richie, Mischa Barton and Beyonce had been seen in on hundreds of paparazzi shots, they began flying off store shelves.

This slideshow looks at the some of the biggest pant and trouser fashion fads being worn by the stars and flaunted on the runway, from metallic gold pants for men to harem pants for the ladies.