Peace songs

On Peace Day people think about friendship, love, peace, harmony... one of the songs that is usually played on this day is ¨Imagine¨ by one of  the famous  Beatles, John Lennon. It`s worth (merece la pena) learning the song and it`s easy to learn the lyrics. It says, for example:  ¨Imagine all the people living life in peace...¨
Can you imagine...?