
I don't know very much about Kyu's and Misora's relationship, if it was more then just colleges or if they were friends. In the Kyu Sakamoto Monogatari-drama it is stated that he got shivers all over his body hearing the music of Misora Hibari and Chiemi Eri, which had a trio together with Izumi Yukimura.[http://www.youtube.com/watch?v=tn2rwfsvRuA]
As far as I know Kyu and Misora never work together, their music differed alot from each other. Kyu singing j-pop and Misora traditional enka.
If this is true or that there was any rivalry between the two, i don't know. Hibari san actually made a cover on Sukiyaki in the late 70's. And here they are together, not looking too joyful sometime in the middle/late 60's celebrating Hibari san's birthday...









