The Twins (Jim and John): "Jo-Ann's Sister" b/w "Who Knows The Secret" (1958): CNQ 45 Record Holder Series Episode 2
Here's the 45cat listing for "Jo-Ann's Sister."
Here's a listing on ebay for the "Jo-Ann's Sister" 45. They're wanting $25 for it!
Finally, here's Jo-Ann's Sister, which someone has already posted on the youtubes:
For educational purposes only, here's "Who Knows The Secret," the b-side to Jo-Ann's Sister:
Who Knows The Secret: