Prince Harry has urged young people to "look up from their phones" and go out and "change the world".
The flame-haired royal made a surprise appearance at WE Day celebrations in Toronto, Canada and called on the younger generation to not waste time on the "clickbait culture".
He said: "The thousands of you gathered here are proof that today's generation of young people is the most connected, most energised, and most confident the planet has ever known. You know that differences of opinion, of circumstance, of race and religion - are to be respected and celebrated.
"You know that in a clickbait culture, we cannot waste time sharing and drawing attention to things that make us angry, or that we know to be false. You all know that it's great to 'like' things on social media, but that it's more important to look up from our phones, to get out into our communities, and to take real action; to stand up for what you believe in."
And the 33-year-old royal wants to help "frustrated" young people to get their voices heard.
He added: "I know that while this generation of young people wants to make our world a better place, you often struggle to get your voices heard. I know that you, more than any previous generation, care deeply about the health and sustainability of the planet you're going to inherit.
"And I see that you're frustrated - that entrenched mindsets - are not keeping pace with the urgency - of the threats to our environment. But today you are all saying no to pessimism and cynicism. Here in Toronto - with both WE day and the Invictus Games - we are saying yes to optimism, yes to hope, and yes to belief."
Tagged in Prince Harry