Dion And The Del-Satins - Donna The Prima Donna
https://www.youtube.com/watch?v=ohtMcxgpRI4
Lots of the songs people think were the Belmonts backing up Dion were actually a different group of guys known as the Del-Satins. The Del-Satins would later be the backup for Johnny Maetro’s group, the Brooklyn Bridge. They did “Worst That Could Happen”, and some other great songs.