The song was written by Dolly Parton who released the song in the 70s, it only sold about 1,000 in the UK. Her friend Kenny Rogers also recorded it, but the big hit is by Whitney Houston when recorded for the film the Bodyguard.
The definitive version is by Linda Ronstadt, who sings it as though she knows what it actually means, unlike Whitney Houston who still confuses volume with emotion, and lip-quivering with expression.