"It's Brand New Day" is the 40th single by Japanese entertainer Akina Nakamori.

Written by Adya, the single was released on May 31, 2001, by the independent label @ease.

[1][2] "It's Brand New Day" was Nakamori's first release in nearly two years, after her falling-out with Gauss Entertainment (which has since been absorbed into Tokuma Shoten in 2005) in December 1999.

The single was initially released exclusively online on Nifty Corporation's website Music@nifty (currently @niftymusic), but it was later made available on CD during the concert tour All About Akina: 20th Anniversary It's Brand New Day from June 6 to July 13, 2001.

In 2002, Nakamori signed with Universal Music Japan, and "It's Brand New Day" was included on her 20th studio album Resonancia.