There was a band in the 1980s called Big Daddy. They did 50s-style covers of top 40 hits. This may sound like a bad idea, but they were great. I especially liked their versions of "Sussudio" and "I want to know what love is". Their stuff was unsurprisingly on Rhino Records. They had an album called "Cutting Their Own Groove" that was particularly fine.
Anyway their stuff is 581% unavailable. People sell their vinyl albums and their one or two CDs for an average of 70 bucks.
If anyone has digital files of them, or vinyl, or has seen some, let me know! I hunger for novelty.