The Chainsmokers have landed 3 top 10 Hot 100 hits this year, and twenty one pilots are on the verge of their third with Heathens. Both groups have had 2 pop radio top 3s and 1 #1. They've also seen success on other formats- The Chainsmokers have 2 rhythmic top 5s, while twenty one pilots have accomplished the same feat on HAC; the Pilots have 2 #1s on alternative. Additionally, both acts have seen sustained success on streaming services.

There's no doubt that these two acts have had the biggest breakouts of 2016, but which one was more surprising?

Chainsmokers