A '''''One Sweet Day''''' [[Mariah Carey]] [[Egyesült Államok|amerikai]] énekesnő második kislemeze hatodik, ''[[Daydream]]'' című albumáról. A dalt Carey együtt írta régi dalszerzőtársával, [[Walter Afanasieff]]-fel, valamint a [[Boyz II Men]] együttes tagjaival, akikkel együtt énekli. A dal tartja az amerikai [[Billboard Hot 100]] slágerlista rekordját mint a leghosszabb ideig listavezető dal (16 hétig). Az Egyesült Államokban ez a legsikeresebb olyan kislemez, melyet nem jótékonysági céllal jelentettek meg.
A ''One Sweet Day''t [[David Cole]] halála ihlette, akivel Carey
többalbumán is együtt dolgozott. A dalban Carey és a Boyz II Men barátaik haláláról énekelnek, és arról, hogy egy szép napon újra együtt lesznek.
In terms of ''[[Billboard magazine|Billboard]]'' magazine charts, 'The song is the most successful single for both Mariah Carey and Boyz II Men'. The single became Carey's tenth number-one single on the [[Billboard Hot 100|Hot 100]] and Boyz II Men's fifth, remaining at the peak for a record-breaking sixteen weeks from [[November 26]] [] to [[March 16]] []. Boyz II Men had previously held this record twice, with "[[End of the Road]]" (1992) spending thirteen weeks at the top and "[[I'll Make Love to You]]" (1994) spending fourteen. (The latter song shared its record with [[Whitney Houston]]'s cover of [[Dolly Parton]]'s "[[I Will Always Love You]]".) "One Sweet Day" replaced "[[Exhale (Shoop Shoop)]]" by [[Whitney Houston]] at number one, and was replaced by [[Celine Dion]]'s "Because You Loved Me".
The single also debuted at number one, making Carey the first artist to have more than one number-one debut, and also the only artist ever to have two consecutive singles debut at number one; the record hasn't been broken yet. The single spent twenty-six weeks in the top forty, was certified two times [[platinum single|platinum]] by the [[Recording Industry Association of America|RIAA]], and ranked number two on the Hot 100 1996 year-end charts.
In the [[Philippines]], it became Carey's biggest hit, topping the Philippines Singles Chart for 14 weeks, the longest number one ever. Due to this huge reception, the song became [[MTV Asia Hitlist]]'s longest number single, topping the charts for a record-breaking 11 weeks. The record in the Philippines has not been broken yet, but in tha MTV Asia Hitlist, Carey broke her own record with 2005's '[[We Belong Together]]."
"One Sweet Day" was nominated for the 1996 [[Grammy Award]]s for "[[Grammy Award for Record of the Year|Record of the Year]]" and "[[Grammy Award for Best Pop Collaboration with Vocals|Best Pop Collaboration with Vocals]]", losing both categories. As two of the top nominees at the 1996 Grammy Awards, Carey and Boyz II Men were invited to perform, and sang "One Sweet Day". Carey began the evening happily as she had been nominated for six Grammys that night. "One Sweet Day" was the current #1 record on the Hot 100 at that time,and the following morning it was announced that it had just broken the record set by Whitney Houston, giving Mariah a "consolation prize".
==Videoklip és remixek==
The single's [[music video|video]], directed by [[Larry Jordan]], is made up of footage showing Carey and Boyz II Men writing and recording the song in the studio as it was difficult for both Boyz II Men and Carey to schedule a time to film a video.
There are no major [[remix]]es of the song, but there is a [[Chuck Thompson]]-produced remix, "One Sweet Day" (Chucky's remix), which gives the song a slightly more R&B feel. An [[a capella]] version of the song, known as the "Sweet a capella", features slightly different vocal arrangements and a new intro which also serves as a countermelody throughout the song.