In the '60s, Marty Allen was partnered with Steve Rossi (Allen & Rossi). I know after they broke up (and before their subsequent re-teaming), he worked with others, but I don't think any of those pairings were as well known as Allen & Rossi.

Here's an interview from not too long ago that pretty much tells the whole story:

Marty Allen Interview Part 1

Marty Allen Interview Part 2


Signor V.

"For me, there's only my wife..."

"Sure I cook with wine - sometimes I even add it to the food!"

"When life itself seems lunatic, who knows where madness lies?"

"It was a grass harp... And we listened."

"Do any human beings ever realize life while they live it? Every, every minute?"

"No. Saints and poets, maybe... they do some."