Katy Perry wishes there was "some freaking peace" in the world.

Katy Perry

Katy Perry

The 32-year-old singer has said she wants nothing more than to put an end to violence, in light of the tragic events of last week when a gunman opened fire on crowds attending the Route 91 Harvest Music Festival in Las Vegas, killing over 50 people and injuring more than 500 others.

Katy was performing in New York City's Madison Square Garden as part of her 'Witness: The Tour' on Friday (06.10.17) when she dedicated her hit single 'Part of Me' to her fans who had "overcome this dumb fear" and chosen to attend her concert.

She said on stage: "My wish is for some freaking peace! Don't you think?

"This is one of my favourite songs to sing - I want to dedicate it to you guys. You chose to come out and overcome this dumb fear. You chose to come into the community of music and to be together ... and be inspired.

"This week has been crappy. This whole year has been crappy. We're stronger than that. No one's gonna steal our joy, are they? We've come together tonight just to escape it all a little bit."

And the 'Bon Appetite' singer isn't the only artist to have spoken out the horrific incident recently, as fellow singer Celine Dion broke down in tears during a performance in the Nevadan city.

Speaking on stage at the time, Celine said: "I hope that you're doing OK ... before we start the show, I need to talk to your for a moment.

"I never start the show like this but tonight is very different. For me it's: 'Can I still do my show?' Should I still do my show only two days after the nightmare?"

The audience fell completely silent as the 'My Heart Will Go On' songstress wiped tears away from her face as she revealed that all the proceeds from the concert would go directly to the families affected by the horrendous attack.