<P> The New York critics ' reviews of the original production were mixed . Fortunately for the show , Ed Sullivan approached Lerner and Loewe to create a segment for his television variety program , celebrating the fifth anniversary of My Fair Lady . They decided to do very little from their previous hit and instead to perform four highlights from Camelot . The show stimulated ticket sales , and Camelot achieved an unprecedented advance sale of three and a half million dollars . Robert Goulet received favorable reviews , most notably for his rendition of the show - stopping romantic ballad `` If Ever I Would Leave You '' , which became his signature song . </P>
<P> The New York critics ' reviews of the original production were mixed . Fortunately for the show , Ed Sullivan approached Lerner and Loewe to create a segment for his television variety program , celebrating the fifth anniversary of My Fair Lady . They decided to do very little from their previous hit and instead to perform four highlights from Camelot . The show stimulated ticket sales , and Camelot achieved an unprecedented advance sale of three and a half million dollars . Robert Goulet received favorable reviews , most notably for his rendition of the show - stopping romantic ballad `` If Ever I Would Leave You '' , which became his signature song . </P>
who sung if ever i would leave you
who sung if ever i would leave you
Robert Goulet
Robert Goulet