I am looking for a song-(you lighted up my life).Who sang this song and in what year.Thanks.?

You Light Up My Life is a ballad written by Joe Brooks and originally recorded by Kasey Cisyk for the soundtrack to the film of the same name. The song was performed in the film by its lead, Didi Conn, who lip-synched Cisyk's version. Pat Boone's daughter, Debby Boone, was recruited to record the single which became a massive success topping the Billboard Hot 100 for ten weeks and easily became the most successful single of the 1970's. The song was only surpassed at that time by Elvis Presley's double-sided Don't Be Cruel/Hound Dog as the longest running No. 1 ever on the Hot 100. The single, which was certified platinum, also spent one week atop the Adult Contemporary chart and peaked at No. 4 Country. Although written by Brooks as a love song, the devout Boone interpreted the song as inspirational and proclaimed that it was instead God who "lit up her life."

Cisyk's soundtrack recording was released as a single to bolster sales of the soundtrack after Boone included her version on her first solo album also entitled You Light Up My Life. (Although the soundtrack was certified gold peaking at No. 17 on the Billboard Hot 200, it never included Boone's version of the song.) Cisyk's single was credited to "Original Cast," not to Cisyk herself, and only reached No. 80 Pop. Brooks also released an instrumental version of the song from the soundtrack as a single, but his version failed to chart. Boone's success resulted in two Grammy nominations for Best Pop Female and Record of the Year and won her the 1977 Grammy for Best New Artist and the 1977 American Music Award for Favorite Pop Single. The song earned Brooks Song of the Year honors at the 1977 Grammy [tied with Love Theme From 'A Star Is Born' (Evergreen)], Golden Globe and Academy Awards.

Many artists have covered You Light Up My Life since 1977. The following year, Johnny Mathis recorded and named his album after the song. LeAnn Rimes released her version as a single in 1997 - 20 years after Boone's version was released and on the same record label (Curb Records). Her version did not fare as well at radio (No. 34 Pop, No. 48 Country). But, her single was certified gold and was the title track to her No. 1 Pop and Country album, You Light Up My Life: Inspirational Songs.

Among the other diverse artists who have recorded the song are:

Jean Carn
Jose Carreras
Perry Como
Robert Goulet
Lee Greenwood
Loleatta Holloway
Whitney Houston
Cristy Lane
Steve Lawrence
Kenny Rogers
Bianca Ryan
Margo Smith
Patti Smith
Westlife

Debby Boone

Debbie Boone 1977

debbie Boone 1977

you loght up my life linda ronstand from the seventys

I thought whitney houston sang it, not sure what year.