I recall being disgusted when, as a broadcaster, I received "Walk Right In" by the Rooftop Singers, and saw them credited with the composition. It was a shameless rip-off, compounded by the $500 Gus Cannon (the real composer) received when the truth came out. Also, the so-called "arrangement" made by Darling and co. was virtually identical to Cannon's original 1929 recording. That song was everywhere and Cannon, who was quoted as being "grateful" should have received a far bigger check. You can't tell me that the RT singers didn't know--they might have though Cannon was dead, but he was not difficult to find and, if memory serves me right, he was working in a very meanial, low-paying job.