"Back at One" is a song written and performed by American recording artist Brian McKnight, taken from his fifth studio album of the same name (1999).

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.

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.

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.