Quote Originally Posted by coldreactive View Post
They'll likely be removed now that you've posted them.
Actually SE can't remove covers of songs. Being a cover, it's protected as long as they don't sell the music without a license and they don't have the original song playing in the video (i.e. playing along with the song or just straight up uploading the original song version). So the first and third of the posted videos are safe. The second one, however, has the original musics and it is within SE's power to have it removed.