Beatles covers and a John Lennon one, which were better than the originals, in my opinion.
https://www.youtube.com/watch?v=nCrlyX6XbTU
https://www.youtube.com/watch?v=25weBjXioB0
https://www.youtube.com/watch?v=W25_jgiY51I
https://www.youtube.com/watch?v=hRzGzRqNj58