On his LA Is My Lady album in the 80s, Frank Sinatra altered the lyric of 'Until the Real Thing Comes Along' to say -- "I'll even knock out Mr. T for you. If that ain't love, it'll have to do, until the real thing comes along."

Then there's Cole Porter's Your the Top which mentions Gandhi and the Great Durante!

Also recall a Fred Astaire tune (which title escapes me at the moment) which mentions Groucho & Harpo.

Cromwell