April 30, 2014 - 11:54 BST hellomagazine.com Kate Moss for Topshop launch saw Naomi Campbell, Cara Delevingne, Suki Waterhouse and Sienna Miller all come together to help celebrate. Click on the photo below for the full gallery... Supermodels Kate Moss and Naomi Campbell have been best friends for more than 25 years, often turning out to support each other at their various events. So it was no surprise to see Naomi helping Kate celebrate her Topshop launch on Tuesday night. VIEW GALLERY The stunning supermodel even admitted that she likes the collection so much that she has already bought thirty pieces. Naomi wore a silver fringed minidress from the range that showed off her long legs to perfection. She larked around with Kate as the pair posed for pictures together at the exclusive dinner to celebrate the range. Another star to show her support for Kate was Sienna Miller. The beautiful blonde, who arrived with fellow actress Jaime Winstone, wore a 70s-style webbed dress and peep-toe ankle boots. VIEW GALLERY Brit fashionista model duo Cara Delevingne and Suki Waterhouse both attended the private dinner, looking typically stylish in all-black ensembles. Cara is known for her good relationship with Kate, who often gives her advice on how to deal with the pressures of fame. It was also recently revealed that the pair have worked together after a teaser for the new Burberry fragrance campaign showed a photo of them posing together in the classic Burberry trench coats. VIEW GALLERY At the dinner, Cara wore a sheer black playsuit and shimmering sequinned blazer. Suki, meanwhile, was low-key in a fringed black dress, a leather jacket and clumpy boots. Speaking about Kate's new line, Cara said, "As soon as I heard that she was working with Topshop, I knew it was perfect. "London brand and London girl – THE London girl – coming together. I knew she'd bring something to make it 'her'."