If you have never heard of Jonathan and Darlene Edwards before then you are in for a treat. American singer Jo Stafford and her husband, pianist and bandleader Paul Weston decided to create a comedy album back in the fifties and sixties. They were actually accomplished musicians who feigned being bad. Weston would play an out of tune piano while Stafford would accompany him by singing in an off-key and high pitched voice. In 1961 they won a Grammy Award for Best Comedy Album.
Please take the time go get to know the real Jo Stafford. Here is a link to one of her hits:
You Belong To Me.