It was 7:51 am on a blasé winter Monday morning in Perth, Australia, as commuters shuffled onto the train, bound for their jobs and the day-to-day grind. Within minutes, thanks to the actions of Peter Sharp, the train was united in singing as they held a sing-along of "Somewhere Over the Rainbow." Sharp is the founder of social movement The Liberators International. He describes it as "a social movement... that creates inspiring large scale participatory acts of kindness, dance and human connection in public places designed to involve communities in positive shared experiences." Sharp came to his inspiration while hitchhiking 932 miles from Barcelona to Croatia. Since then, he's founded the Liberators and Good Vibrations Barcelona to bring together thousands of people dedicated to random acts of kindness and love in everyday life.