What is the Chart Update?

Greg's weekly Chart Update is an exclusive, first-of-a-kind opportunity for you to see how the Top 40 charts are shaping up as we enter the middle of the week.

Every Wednesday from 15:30 to 16:00, Greg reveals the current standings in the UK Top 40, which you can watch unfold live on the Chart Update page.

This is the only official chart based on sales alone and is compiled for Radio 1 by The Official Charts Company.

Think of it like the half time scores! The Official Chart Show with Reggie Yates will have the final results on Sunday as per usual, so don't forget to tune in at 16:00 to hear the final outcome.

• Top 40 Singles Chart Update
• Top 40 Albums Chart Update