"Poppin' Apathy" (ポッピンアパシー, Poppin Apashī) is a song by Japanese musician Kenshi Yonezu. It was released as a double A-side single alongside the song "Mad Head Love" on October 23, 2013 by Universal Signma, on the same day that Yonezu's two self-released Vocaloid albums, Hanataba to Suisō and Official Orange, were re-issued by independent label . Though recorded during sessions for Yonezu's album Yankee (2014), the song was not present on the final track list of the album.

In May 2012, Yonezu released Diorama, his third album and first to use his own vocals. It was released under independent label Balloom. The album was written, produced and illustrated entirely by Yonezu himself. The album was commercially successful, debuting at number six on Oricon's albums charts, and was one of the most sold independently released albums of 2012 in Japan.

A year later, Yonezu debuted under major label Universal Music Japan with the single "Santa Maria." Two of the songs were performed with a band, the first time Yonezu had worked like this. The single reached number 12 on chart provider Oricon's singles chart.

A week after the single's release, Yonezu released his first Vocaloid song in two and a half years, called "Donut Hole" (ドーナツホール, Dōnatsu Hōru) using Gumi vocals. It was the first time he used a live band on a Vocaloid song.

"Mad Head Love" and "Poppin' Apathy" were written at the same time, based on the theme of a Möbius strip. "Mad Head Love" was "positive" and "high tension", while "Poppin' Apathy" was written as a gloomy, negative song by Yonezu. Because of this, he felt it was right for them to be released together. Originally "Poppin' Apathy" was not planned to be an A-side. When drawing the cover art for "Mad Head Love", he felt it would be interesting to see the characters drawn on the cover from the opposite side. This idea made Yonezu create a design for "Poppin' Apathy", and gave him the idea to release the single as a double A side release. "Poppin' Apathy", along with the single's B-side "Tori ni Demo Naritai" were arranged by Yonezu without a live band, in contrast to the live band sound present on "Mad Head Love". "Poppin' Apathy" was written close to Yonezu's true feelings are when composing. He finds it easy to be too self-conscious and pessimistic, so put these feelings into song.

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