Niall Horan obviously killed his set, but we couldn't take our eyes off his Santa shirt

This image appears in the gallery:
Jingle Bell Ball 2017 Live: The Best Photos From Saturday On Stage At The O2

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

10. 62 images

See the full gallery: Jingle Bell Ball 2017 Live: The Best Photos From Saturday On Stage At The O2