If you were listening to NPR news this morning, you might have caught a very nice interview with Jo Sullivan Loesser, the widow of Broadway legend Frank Loesser, best known for his songs for “How to Succeed in Business Without Really Trying” and “Guys and Dolls,” a real contender for the best musical comedy score of all time.  The occasion is that this is the year Loesser, who died in 1969, would have turned 100.

So, here’s the key number from “How to Succeed,” in which young, extremely fast-rising executive and ex-window washer J. Pierrepont Finch serenades his favorite person in the world. The film version, directed by David Swift, isn’t a particularly brilliant piece of cinema in terms of taking the piece from stage to screen, but it documents the play on film rather nicely, as you’ll see below.

Of course that’s a young Robert Morse up there as Ponty. I’m not sure how widely known it is to younger viewers of “Mad Men,” but Morse is better known these days as the conniving and sagacious Bertram Cooper, until recently the senior mucky-muck of ad firm Sterling Cooper. (Any similarities between the often somber TV show and the sprightly satirical musical aren’t, of course, all that coincidental.) Morse is an even better actor today, but the above shows how skilled he was at age 35 back in 1966-7 (when he still looked about 20).  Daniel “Please don’t call me ‘Harry'” Radcliffe, who really is still practically a zygote, is going to be taking on the role shortly on Broadway, which will be interesting.

After he’s done…well, I wonder if Vincent Kartheiser (i.e., Pete Campbell) can sing at all. I’d pay to see that.