"Through the Rain" is a song by American singer Mariah Carey, taken from her ninth studio album, Charmbracelet (2002). It was written by Carey and Lionel Cole, and produced by the former and Jimmy Jam and Terry Lewis. The song was released as the album's lead single on October 17, 2002, and a shorter version was used as the ending credits theme for a 2002 Japanese drama known as You're Under Arrest. Classified by Carey as a ballad, it is influenced by pop and R&B music genres, and features a simple and under-stated piano melody, backed by soft electronic synthesizers. "Through the Rain" was meant to be an insight into Carey personal struggles throughout 2001, and lyrically talks about encouraging others.

The song has been well-received, with many complimenting its inspirational lyrical content, and described it as an open window into Carey's personal life for listeners. Commercially it was Carey's lowest charting lead single to date on the US Billboard Hot 100, and her first lead single to that point to not reach the top ten in the United States. Though stalling at number 81, it managed to achieve higher placements in international markets, reaching the top in Spain and peaking within the top ten in Canada, the Netherlands, Italy, Sweden, Switzerland and the United Kingdom.

Carey performed "Through the Rain" live on several television and award show appearances around the world. She debuted the song at the 2002 NRJ Awards, and features it on a one-hour special titled Mariah Carey: Shining Through the Rain, which aired three days later on MTV. In the United States, Carey performed the song on Today, The Oprah Winfrey Show, and American Music Awards of 2003s. Throughout Europe, Carey performed the song on The Graham Norton Show and on talent competition, Fame Academy. Additionally, "Through the Rain" was included on the set-list of Carey's Charmbracelet World Tour: An Intimate Evening with Mariah Carey, which spanned throughout 2003–04.

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