What's happening this week in the world of fashion?  We have hot beauty trends (jade nails, brazen blue mascara), new niche lines from urban brands, and six great coats under $100.  Plus, the over the top shoe trend you need to know about for Fall!

Fashiontribes gives us the scoop on Christopher Kane's 39-piece collection for Topshop.

Second City Style issues a trend alert for the Over the Knee boot.

The Budget Fashionista reports that urban brands like Baby Phat are creating niche lines for a younger, hipper consumer.

SheFinds is ready to hit the 80s with brazen blue mascara.

Couture in the City shines a spotlight on skinny jeans.

Fabsugar gives us a sneak peek at Urban Outfitters' Fall 2009 collection.

The It Lists shares the hot new beauty trend for Fall: Jade Nail Polish.

And over at Omiru: Style for All, we have six gorgeous fall coats under $100.

Photo courtesy of Fabsugar.