"I Will Always Love You" is a song sung by American female singer Whitney Houston. The lyrics and music are written by Dolly Barton, and David Foster is the producer. As the theme song of the movie "Bodyguard", the song was released by Leicester Records on November 3, 1992, and included in the original soundtrack album "The Bodyguard".

In 1992, "I Will Always Love You" won the No. 1 on the Billboard Top 100 Singles Chart in the United States for 14 consecutive weeks, and won the No. 1 singles chart in more than a dozen countries around the world, becoming the highest-selling female singer single in history. . In 1993, the song won the MTV Movie Awards "Best Film Song" award, four bulletin board music awards, and a soul train music award. In February 1994, the song won two National Music Awards; in April, Whitney Houston won the 36th Grammy Awards "Recording of the Year" and "Best Pop Female Voice" for the song.

In 1992, Whitney Houston wanted to co-star with Kevin Costner in the movie "Bodyguard", so she started looking for a suitable movie theme song. Kevin Costner recommended her to use Linda Longstay’s 1975 cover of "I Will Always Love You". Whitney Houston said she liked it after listening to it and immediately decided to join the producer David Foster. This song was re-arranged and made the style of the song closer to the soul music ballads of African Americans.

"I Will Always Love You" is a sad lyrical song. In just a few words, it delicately describes the singer's sadness and affectionate blessings for leaving his beloved one. In music, the song went from the sad and sad lyric to the high and magnificent gospel pop, which is intoxicating and deeply touching. In the interpretation, Whitney Houston's voice choked and tense for a while. She used the ending I Will Always Love You as a series of emotional explosions and applied continuous high notes to the climax of the song.