It's not just another year over, it's another decade too and as we say goodbye to the 10s, I hope you join me as I countdown the biggest songs of the decade. Usually, I ask which albums do you own, however, seeing how this is all about the singles released in the 10s I'm curious as to which of these songs you have no memory of. I know, as I put this together I came across a few songs and some artists that I have no recollection of and Ill share these with you when we hit them. Also, do shout out if there are songs you had completely forgotten about or any songs that surprised you by where they finished in the countdown. The Top 100 list, compiled by the Official Charts Company, features 55 Number 1s and 207 million chart sales, taking in physical, downloads and streaming equivalent sales. The countdown also includes 30 collaborations.