![billboard on Twitter: "The top #Hot100 songs of 2020. 💯 See the complete year-end @billboardcharts here: https://t.co/UNqmUlLePw https://t.co/NWs164WBns" / Twitter billboard on Twitter: "The top #Hot100 songs of 2020. 💯 See the complete year-end @billboardcharts here: https://t.co/UNqmUlLePw https://t.co/NWs164WBns" / Twitter](https://pbs.twimg.com/media/EoUjnQ2XMAEzjb2.jpg:large)
billboard on Twitter: "The top #Hot100 songs of 2020. 💯 See the complete year-end @billboardcharts here: https://t.co/UNqmUlLePw https://t.co/NWs164WBns" / Twitter
Reelin' In The Years with Bob Labbe - Today is Pop Chart Day: On January 4, 1936, Billboard magazine published its first music hit parade. The first Music Popularity Chart was calculated
![billboard on Twitter: "The top rock songs of the decade 🎸 See the full chart here: https://t.co/PdKH4WXrSq https://t.co/Qr83mZoKaA" / Twitter billboard on Twitter: "The top rock songs of the decade 🎸 See the full chart here: https://t.co/PdKH4WXrSq https://t.co/Qr83mZoKaA" / Twitter](https://pbs.twimg.com/media/EM98UZAXYAI7Q5I.jpg:large)