Carl Mann - A singer who it seems had a habit of doing covers of other singers songs although in the case of Pretend I think he was the first to update it. Another singer I thought should have been better received.
Here we have:
Mona Lisa and Pretend (two versions of Pretend from Carl) - The originals of both songs were slow romantic versions by Nat King Cole. The the rock version of Mona Lisa was from Conway Twitty.
South of the Border - original undoubtedly done by Bob Wills since he wrote it
Ubangi Stomp - Warren Smith; maybe Buddy Knox did a version
Previously Judy and I'm coming home have been loaded and both of these were done by Elvis.