Sheet music for "Back at One" is in the key of
B major in common time with a slow tempo of 65 beats per minute.[1] The song modulates a half step to
C major for the last chorus.
Chart performance
"Back at One" went on to be one of McKnight's biggest successes, reaching the top ten in New Zealand, Canada and the United States, where it eventually peaked at number two for eight weeks but was kept off the top spot by "
Smooth" by
Santana.[2]
Music video
The music video was directed by
Francis Lawrence and was nominated for R&B video of the year in the Music Video Production Association Awards.[3][4]
American
country music artist
Mark Wills covered "Back at One" on his 2000 album Permanently, also releasing it as that album's first single. Released in October 1999 (two months after McKnight's version), Wills' cover peaked at number two on the Billboard country singles charts for a week.[40] Despite not reaching the top spot in the US, the song did manage to reach number one on the Canadian RPM country tracks. In addition to his country chart success, "Back at One" also became his fifth entry on the Hot 100 charts, peaking at number 36 there.
McKnight also performed the song with Brazilian singer
Ivete Sangalo on her album Festa (en: Party).
In 2000, keyboardist
Bob Baldwin released a cover of the song from the album BobBaldwin.com.[45][46]
Also in 2000, Jamaican reggae and dancehall singer Sanchez recorded a reggae cover version of the song over the "Fi Wi Rock" rhythm produced by King Jammy which became a popular dancehall hit in Jamaica and the US.
In 2001, UK music artist
Lulu recorded the song for her album
Together with a duet with
Irish pop band
Westlife and performed it live subsequently.
In 2003, Smooth jazz guitarist and musician
Paul Jackson, Jr. covered the song as the closing track from the album Still Small Voice.
Another instrumental rendition of this song has been performed by
saxophonistWarren Hill, from his album 2005 PopJazz.[47][48]
In 2006, British pop singer
Shayne Ward also performed this song on his debut album Shayne Ward.