Paul McCartney was among the celebrities who stood in solidarity with the thousands protesting gun violence across the US, joining March for Our Lives in New York.
"One of my best friends was killed by gun violence right around here, so it's important to me not just to march today but to take action tomorrow and to have these people to have their voices heard," McCartney told CNN's Jason Caroll.
Caroll asked McCartney what he hoped could be achieved by the rally, to which McCartney opened his jacket to emphasise the message on his shirt, which read, "We can end gun violence."
McCartney said he wasn't sure whether gun violence could be ended on the legislative level, but said that what citizens can do is march.

Paul McCartney (C) attends the 'March For Our Lives' protest. Source: Getty
The former Beatle was joined by his wife Nancy Shevell at the rally blocks away from the Dakota Building, where John Lennon was shot in 1980.
In McCartney's native England, it's significantly more difficult for private citizens to own guns, a result of a 1996 mass shooting in Dunblane, Scotland, in which a gunman killed 16 children and a teacher.
After the shooting, all handguns were banned from private ownership, with over 162,000 being surrendered in a gun amnesty. Only one mass shooting has taken place in the UK since, in 2010.
Several other celebrities expressed their support for the cause on Saturday and attended rallies in their cities.

Amal Clooney and George Clooney pose with students attend March For Our Lives on March 24, 2018 in Washington, DC. Source: Getty

Tish Cyrus, Jimmy Fallon, and Brandi Glenn Cyrus attend March For Our Lives on March 24, 2018 in Washington, DC. Source: Getty
Demi Lovato performed at the Washington DC rally, and others like Kim Kardashian West, Liev Schreiber, and Nick Offerman posted about their intention to rally.
Celebrities weigh in on March For Our Lives
Dwayne Johnson: "I'll always stand for open dialogue and action - it's the only way to ensure bad history doesn't repeat itself....Very strong day."
George Takei: "Thank you to everyone marching around the world today, you are truly making a difference and saving lives. The kids who are leading this movement inspire me every day."
Julia Louis-Dreyfus posted a picture of her mother holding a sign reading "Protect our children from guns" and encouraged her followers to head to the ballots in November. "If our elected officials don't act to prevent gun violence, we will (hashtag) throwthemout."
Noah Cyrus posted a picture of herself with her sister Miley, who sang at the Washington DC rally, and several others wearing March for Our Lives tees.

Common (L), Kanye West, and Kim Kardashian West (C) attend March For Our Lives on March 24, 2018 in Washington, DC. Source: Getty

Glenn Close and Cher attend March For Our Lives on March 24, 2018 in Washington, DC. Source: Getty
Amy Poehler posted to the students: "I applaud your bravery and your incredible poise, and the fire you have started will not go out. It will only get stronger and we will help fan the flames."