Tomorrowland played host to an unlikely visitor today.

United Nations Secretary-General Ban Ki-moon paid a visit to the festival's De Schorre grounds in Boom, Belgium to deliver a message of global unity on Wednesday, May 27.

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The message, “Let’s work as one towards dignity for all,” was engraved on a wooden board and mounted on the grounds' 600 meter-long "One World" bridge designed by Arne Quinze.

"“Young people today are growing up in a world full of change. Tomorrowland demonstrates that it's possible: tens of thousands of people coming together in peace and respect for one another to share a weekend," said Ban.

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Ban also met with Tomorrowland and TomorrowWorld founders Michiel and Manu Beers in Brussels to discuss parallels between their core values, and how the dance festival has been able to connect with younger generations.

"The One World bridge now displays 210,000 positive messages from everyone from our neighbors in Boom, Belgium to faraway friends in Australia," said Manu Beers. "We are very honored to receive the contribution from the Secretary-General of the United Nations and we intend to continue to spread this message for many years to come.”