Join John each week as he selects a random year from the 70-year history of the UK charts as he counts down the Top 40 bestselling singles of that year.
Along with a few facts abouts some of the tracks played and some honourable spins of tracks that didn’t quite make the list.
We'd love to see your predictions for what you think might make #1.
Post your thoughts on your socials and use the hashtag #top40years