Birth of a New Day^[1] (Japanese: 新しい日の誕生, romanized: Atarashī Ni~tsu no Tanjō)^[2][3] is the second studio album by English-American electronic music duo of dreampunk producers Hong Kong Express (also known as HKE) and Telepath (stylized as t e l e p a t h テレパシー能力者), both collaborating under the alias 2814, released on January 21, 2015, by HKE’s record label Dream Catalogue. With the popularity of vaporwave in the early to mid-2010s, the duo experimented with the genre by not using any form of samples to compose the album, thus becoming notable for being one of the first vaporwave releases not to include such production techniques. 2814 stated that they wanted it to “have a strong sense of place”; its themes reflect the dark worldviews of HKE.

Birth of a New Day was the breakthrough album of Dream Catalogue and also the first physical release of the label; it is one of the most popular releases associated with the vaporwave genre, as well as one of the most positively received. Described as a “cult classic” by an AllMusic editor and as a catalyst of the dreampunk genre by the duo, it became the best-selling album of the genre on the music website Bandcamp.