Solved:
I meant who sings the duet version of "Sunrise, Sunset" with Eddie Fisher? (Not Jim Nabors or Robert Goulet)
There's the most popular version of "Sunrise, Sunset" done by Eddie Fisher, that gets played on the radio. I thought it was Robert Goulet, that had the most popular version of "Sunrise, Sunset". There's a version of "Sunrise, Sunset" that Eddie Fisher song by himself. I thought there was a version of "Sunrise, Sunset" that was song by Eddie Fisher and a female singer singing it together.
There was Eydie Gorme & Steve Lawrence that did the duet version of Sunrise, Sunset, that was also popular. This is an easy-listening song. Actually Eddie Fisher's version of Sunrise, Sunset was more popular. I thought it was Jim Nabors, though.