Euphoria Perfume by Calvin Klein, The Calvin Klein brand has been widely respected for many years in the fragrance industry, creating perfumes and colognes that have become the signature scents of millions of people. In 2005, he introduced Calvin Klein Euphoria, and perhaps unsurprisingly, women all over the globe were positively euphoric once they got a whiff of it. Calvin Klein Euphoria perfume is a fun and enticing scent for women.