"Overdose" is the debut single by Japanese singer natori. It was released on September 7, 2022, as a digital single under the imprint label siritoriyowai records. As of 2026, the song has amassed over 300 million streams on Spotify.
Background and release In an interview alongside imase with Yukako Yajima, natori said he was gifted a higher-quality microphone by imase, as his previous one was low quality. It was used to record the TikTok demos that soon went viral.
On May 14, 2022, "Overdose" was posted as a demo to TikTok where it gained considerable attention, resulting in over 280,000 videos using the song. The success led the song to debut at number 5 on Billboard Japan's "TikTok Weekly Top 20", peaking at number 2.
On September 7, 2022, "Overdose" was released to YouTube and digital streaming services. It went on to be covered by numerous artists, including Ado, Hoshimachi Suisei, and Kobo Kanaeru.
On April 28, 2023, an acoustic variant of the song was released.
"Overdose" was released under the imprint label "siritoriyowai records", which is also natori's online handle. The name originated from a TikTok Live between natori and imase in June 2021, in which natori lost a game of shiritori and as a penalty, changed his handle to "siritoriyowai", roughly translating to "bad at shiritori".
Commercial performance "Overdose" debuted on Billboard Japan's Streaming Songs chart at number 17, where it maintained a Top 10 position for 12 consecutive weeks, reaching a peak position of number 2. It went on to surpass 200 million streams on its 30th week, and 300 million on its 58th. The song tied for the sixth-fastest song to reach 100 million streams on Billboard Japan's charts, doing so in its 13th week.
On Oricon's Weekly Streaming Ranking, the song surpassed 100 million streams in 14 weeks, tying with Yuuri and his song "Dry Flower" for the second-fastest time to reach 100 million streams achieved by a male artist. Additionally, "Overdose" briefly overtook Ado's song "New Genesis" as the number 1 song of Oricon's Daily Digital Singles chart, and on Billboard Japan's Top User Generated Songs chart. The song also peaked at number 1 and 2 on Line Music and Apple Music's charts respectively.
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