Halsey and All Time Low performing 'Remembering Sunday' together, on a Sunday?! Iconic.
PVRIS' Lynn Gunn and All Time Low's Alex Gaskarth also voiced their support on social media.
Mark Hoppus, Billie Joe Armstrong, Halsey and Hayley Williams were among the musicians attending the March For Our Lives events this past weekend (March 24th).
'Strangers', as you've never heard it before.
NEED to go.
You need to hear this.
More of this, please.
So, so cool.
This is going to be good.
And it's a little disturbing.
Here's who you voted for...
There are so many reasons, but here are just a few...