Cosmic Explorer (stylized as COSMIC EXPLORER) is the fifth studio album by Japanese girl group Perfume. It was released on April 6, 2016 by Universal Music Japan, Universal J, and Perfume Records. Cosmic Explorer is Perfume's first studio album and their longest in production with three years since Level 3 (2013). It is also Perfume's fifth consecutive album to be fully produced, written, composed, and arranged by Japanese musician and Capsule band member Yasutaka Nakata. Three different formats were released to promote the album: a standalone CD, a double CD and DVD/Blu-ray box set, and a digital release.

Upon the album's release, it was met with favorable reviews from music critics. They praised the album's composition and sound, and also highlighted several songs from the album. However, some noted that the material and commercial appeal of the songs were repetitive and predictable since their last albums. Six singles and one promotional single were released from the album.

Cosmic Explorer is Perfume's first studio album since Level 3 (2013). It is also their longest album in production since Level 3, which spanned a total of three years. Perfume and their record labels Universal Music Japan, Universal J, and Perfume Records hired Japanese musician and Capsule member Yasutaka Nakata to compose, produce, write, and arrange the then-upcoming album. This marks the group's fifth consecutive studio album to be handled primarily by Nakata. It is also his first fully produced studio album inside of 2016.Cosmic Explorer is an electronic dance album. Five of the album's tracks: "Flash", "Sweet Refrain", "Tokimeki Lights", "Star Train", and "Cling Cling" were re-arranged by Nakata, whilst a bonus CD on the album includes the original single edit for "Flash".

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