Unity (Mrs. Green Apple EP)

Unity is the fourth extended play by Japanese rock band Mrs. Green Apple. It was released digitally on July 7, 2022, and physically on July 8, by EMI Records.

Background and release
On July 8, 2020, with the fifth anniversary of Mrs. Green Apple's major label debut and the release of their compilation album 5, the band announced the "completion of phase one" and a hiatus. They also announced their independence from their agency and a new project "Project-MGA", in collaboration with Universal Music Group, which launched on February 4, 2021.

Vocalist Motoki Ohmori made his solo debut on February 24, 2021, with his debut EP French, and released a second EP Midnight on August 6. Mrs. Green Apple released a teaser video on July 8 announcing that "phase two" would begin in 2022. On December 30, the band announced the departure of drummer Ayaka Yamanaka and bassist Kiyokazu Takano from the group.

On March 14, 2022, Mrs. Green Apple released their new logo in a video that was broadcast outside Shibuya Station and at Shibuya Crossing. They released "New My Normal" as a limited edition single on March 18, with the music video premiering the same day. On the same day they announced that they would be releasing an extended play on July 8 holding a one-night arena performance. Concept photos and comments from the members were also released. The group released the title and jacket of the EP on May 12, and the track listing on May 20.

On March 28, "Dance Hall" was announced as the theme song for Fuji TV's information program Mezamashi 8. "Blue Ambience" was featured on Abema's reality show Today, I Fell in Love: First Rainbow Collection on the same day. On May 17, "Enen" was announced as the theme song for the video game Fire Force: Enbu no Shō, the band's second song for Fire Force after "Inferno" for the anime. "Dance Hall" was released as a single on May 24, and "Blue Ambience" was released as a single on June 13.