The Power of Love was written by Jennifer Rush, Gunther Mende, Mary Susan Applegate and Candy de Rouge. Rush wrote the lyric about her boyfriend, Harvard graduate Steven Engebretson. He was only her second relationship and the two remained a couple long after the song was released.
Originally recorded by Jennifer Rush, it was released in the US in late 1984, but not as a single. CBS held off on releasing it in the US because the powers that be felt it sounded too European. However, it was issued as a single in West Germany in December of 1984 and in the UK in June of 1985. In the UK it topped the chart for five weeks in October 1985, going on to become the best-selling single of the year. Notably, Rush's version was the first ever million-seller by a female soloist in Britain and the bestselling single ever by a woman (until Whitney Houston came along with I Will Always Love You in 1992.) As of March 2017, her version had sold 1.45 million copies in the UK alone.
The Power of Love became Dion's first US #1, topping the Billboard Hot 100 for four weeks in February of 1994. It also topped the charts in Australia and Canada, and reached the Top Ten in France, the UK, Belgium, Sweden and New Zealand. In the US alone, it sold 1.5 million copies.