Blake Lively attended the opening of Lady GaGa's latest project - a 5,550 square foot pop-up store in Barney's NY that will sell a range of different products inspired by the performer, including apparel, accessories, cosmetics, candles and toys. The range will also feature books and CDs curated by her. Jewellery made of candy and lipsticks in signature Gaga red or pink hues are also on offer.