We all know the Elvis version of Suspicious Minds but it was originally recorded by Mark James
The very different original version of The Lion Sleeps Tonight.
The Tide Is High was a hit for Blondie but a lot of people don't realise it was a cover of The Paragons.
Blondie also had a hit with a regendered version of Denise!
Another regendered cover was Hey Mickey By Toni Basil which started life as Hey Kitty and was originally recorded by Racey.
More to follow and please post your own!