As if the excitement of London Fashion Week beginning wasn't causing enough of a frenzy in fash land, Mary Katrantzou's gorgeous collection for Topshop lands TODAY. Expect never-ending queues of fashion-forward bunnies, a LOT of elbow barging and tills ring-a-dinging at the nine branches of Topshop that will be stocking the collection, not to mention hoards of people swarming onto Topshop.com.

Grazia Daily has just popped to Topshop's mega store in Oxford Circus and as expected, it's absolute carnage. There's hysterical grabbing, bulk buying and even squeals erupting from the eager shoppers. After, ooh, approximately two minutes, the Pheasant Dream dress was gone and the blouses are proving to be the most popular item. We've spotted people CLIMBING ON EACH OTHER'S SHOULDERS to tear items off the mannequins and someone got PUNCHED in the mayhem. We kid you not.

AND! Despite going on sale only a matter of hours ago, MK pieces are already appearing on eBay. One of the divine dresses is up for grabs for a gob-smacking £600 and the tunic dress for a Buy It Now price of £295.00. WE GASP.

Images taken on the HTC Sensation XL with beats audio

If you've seen the collection, you'll understand the hysteria. As we reported last week, the nine-piece range (priced between £40 - £350) is inspired by the designer’s mainline collection so is certainly not ‘Katrantzou lite’. There are head-turning collage prints and lampshade-shaped party dresses galore. Grazia's Shopping Editor Catherine Nieto snapped up the blue printed trousers as well as the carnation T-shirt, while our Editor at Large, Angela Buttolph, opted for the frankly amazing multicolour satin dress.

Images taken on the HTC Sensation XL with beats audio

Assistant Editor Hattie Brett chose the multicolour silk dress while Digital Editor Jessica Vince picked up the printed floral tee. So do tell: what will YOU buy?

BIG P.S! During our shopping spree, Topshop insiders told us there'll be a pop-up shop at the Unique show on Sunday. OOh. Could this mean the Autumn Winter 2012 collection will be sold on site, moments after hitting the catwalk? Here's hoping! And, of course, Grazia Daily will bring you the facts as soon as we know...