This month is the 50th anniversary of the release of former Beatle, John Lennon's iconic album, Imagine, with the title song of the same name.
The best-selling single of his solo career, its lyrics encourage people to imagine a world of peace, a message that still resonates half a century later.
And so does the song.  It has become a timeless global anti-war anthem, and one of the most beloved melodies across all languages, expressing a collective wish for unity and a better future.
At the start of this golden anniversary year, it was re-imagined by German film score composer, Hans Zimmer, and sang during the opening ceremony of the 2021 Tokyo Olympics.
We speak to Sean Brokenshaw, a broadcaster known as 'the music guru'.