Every now and then, one of the cover tunes I've done gets recognized by YouTube as containing copyrighted content. All that happens is that YouTube gives the owner of the publishing rights some micro-fraction of a penny when your video is viewed. The notification YouTube gives you that your video "Includes copyrighted content" is a link. I found out recently by following that link that you can now look up a song ahead of time to see if covers of it are allowed. According to this, Supertramp songs are now allowed. They didn't use to be -- Rex and others have gotten demerits from YouTube for doing Supertramp covers. The Eagles are still off limits (sorry, TCK).
https://www.youtube.com/music_policies
https://www.youtube.com/music_policies