![30 Years Ago, The Billboard Hot 100 Singles Were Forever Changed By Broadcast Data Systems and SoundScan – Billboard Chart Rewind 30 Years Ago, The Billboard Hot 100 Singles Were Forever Changed By Broadcast Data Systems and SoundScan – Billboard Chart Rewind](https://billboardchartrewind.files.wordpress.com/2017/09/nov-30-1991-chart2.png)
30 Years Ago, The Billboard Hot 100 Singles Were Forever Changed By Broadcast Data Systems and SoundScan – Billboard Chart Rewind
billboard charts on Twitter: "Introducing the #Hot100 Chart Championship📈 All 64 of @billboard's Year-End Hot 100 No. 1s, from 1958 to 2021, will face off to crown fans' favorite No. 1 of
![EMF on Twitter: "On this date in 1991, “Unbelievable” hit #1 on the Billboard Hot 100 singles chart. #EMF #EMFTheBand #Unbelievable #Billboard #Hot100 #BillboardHot100 https://t.co/gsJbOdX7cZ" / Twitter EMF on Twitter: "On this date in 1991, “Unbelievable” hit #1 on the Billboard Hot 100 singles chart. #EMF #EMFTheBand #Unbelievable #Billboard #Hot100 #BillboardHot100 https://t.co/gsJbOdX7cZ" / Twitter](https://pbs.twimg.com/media/DijSz5EVQAARg9q.jpg)