The Chainsmokers looked fresh on the red carpet before their #MonsterMashUp debut in Liverpool.

This image appears in the gallery:
#MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party

1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 

10. 77 images

See the full gallery: #MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party