"I Love You" is a song written by Cole Porter in 1944 for his stage musical Mexican Hayride. It was popularized by Bing Crosby in the same year.
Versions have also been recorded by Frank Sinatra, Jo Stafford, Bill Evans, and John Coltrane. It has become a popular jazz standard tune.
Barbra Streisand performed several lines in her "Color Me Barbra Medley" from the TV special and album "Color Me Barbra".
[Not to be confused with an earlier song called "I Love You" by Harlan Thompson (lyrics) and Harry Archer (music) written for the 1923 musical Little Jessie James.]