About Lost in Japan

"Lost in Japan" is a song recorded by Canadian singer Shawn Mendes. It was written by Mendes, Scott Harris, Nate Mercereau and Teddy Geiger, with production handled by Mendes, Mercereau, Geiger and Louis Bell. The song was released by Island Records on March 23, 2018, as a second single for Mendes' self-titled third studio album. An official remix by German music producer Zedd was released on September 27, 2018.

The song's title was first spotted in the background of Mendes' Instagram posts from when he was recording the album in Jamaica, leading to speculation on the possibility of Mendes releasing two singles, hence the two dates in an earlier teaser. He announced the song mere hours after the release of "In My Blood", writing on Twitter: "Wanted to give you another song".