Cassadee Pope

Surprise!

This epic collaboration brought the crowd to their feet!

On May 31, 2013, Pope released "Wasting All These Tears," her debut country single.

It's a pop-punk flashback!

Yes, country stars are fun to follow on Instagram -- but so are their dogs!

These stars are giving back and making a difference!

Both Pope and Morris separately came up with the idea of touring together ... Great minds think alike!

Following the release of her sophomore album, Pope performed her latest single and explained a bit about her musical journey.

"[I wanted to] let everybody know that, okay, now we're gonna get into some real s--t ..."

They're coming together to raise money for the victims and their families.