Solange Knowles and Kate Bosworth at Topshop LA Party

It was all about star-studded store openings in LA last night, and the Topshop/Topman launch party drew one serious style crowd to Cecconi's West Hollywood. British beauties Ashley Madekwe, clad in a sportier minidress, and Poppy Delevingne, in a sequined fit-and-flare, stepped out to support the beloved UK high-street retailer's West Coast move. Also in the mix? Kate Bosworth, Emma Roberts, Julianne Hough, Kim Kardashian, and a print-clad Solange Knowles. And if that A-list crew isn't enough to get you clicking, there are at least five more outfits you have to see inside. See every party look now.