The One I Love (Belongs to Somebody Else) Wikipedia
"The One I Love (Belongs to Somebody Else)" is a popular song.
The music was written by Isham Jones, the lyrics by Gus Kahn. The song was published in 1924. It was first introduced by Al Jolson. The song was performed in the 1951 film I'll See You in My Dreams, starring Doris Day and Danny Thomas. The film was based loosely on the lives of Gus Kahn and his wife Grace LeBoy Kahn.
Frank Sinatra covered the song on his 1961 I Remember Tommy album and the 1991 re-issue of his 1959 No One Cares album. Julie London included the song on her Julie Is Her Name, Volume II 1958 album, and her 1968 album Easy Does It. Seth MacFarlane covered the song on his 2015 album, No One Ever Tells You.