"Pink Champagne" is a song recorded and performed by Japanese collective unit E-girls, taken as a single from their fourth studio album E.G. Crazy (2017). The track was released on August 10, 2016 through Rhythm Zone and Avex Music Creative Inc. in three physical formats—two CD's and a DVD bundle—and for digital consumption. The song was written by Masoto Kotake and produced by Exile Hiro. Additionally, each addition apart from the one-track format came with the two B-sides: "Bad Girls" and "Cowgirl Rhapsody" which was produced by Skylar Mones, one remix of their single "Dance Dance Dance" and the first three instrumental tracks, respectively.

The concept for "Pink Champagne" was to emphasize a more cooler, sexier and edgier sound than their previous single "E.G. Summer Rider", which was described by Rhythm Zone as fun and poppier. Furthermore, the single was created by a variety of composers, such as Sigurd Rosnes, Courtney Woolsey and Stephen Stahl, amongst others. Musically, it is an electronic dance number that incorporates elements of 1980's disco and tropical house. Lyrically, it delves into themes of having fun and enjoyment. Upon its release, "Pink Champagne" received positive reviews from music critics, who highlighted the single as one of the group's best releases, and complimented its dance nature and production.

Commercially, it experienced success in Japan, peaking at number two on the Oricon Singles Chart and the Japan Hot 100, the latter published by Billboard. It was certified gold by the Recording Industry Association of Japan (RIAJ) for physical shipments of 100,000 copies, the band's first single to do so. In order to promote the single, E-girls performed in the accompanying music video, which was directed by Shigeaki Kubo, and depicted the band in various club-like locations. Additionally, the girls sung and performed the track on several concert and shows.

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