The "One Blood One Humanity" is the overarching theme for this year's World Interfaith Harmony Week Celebration organised by Harmony Centre of Singapore, supported by An Nahdhah Mosque in Singapore. The celebration consists of a series of social media campaign to educate the public on world interfaith harmony week and ended it with a bigger celebration on 9th February 2019. The celebration is breakdown into 4 types of events. 1) Welcome Conversation, welcoming new youth members joining the interfaith committee and the faith leaders. 2) Distribution of World Interfaith Harmony Postcards to public and oranges in conjunction with Chinese Lunar New Year Celebration by interfaith youth ambassadors. 3) Lunch conversation and interactive games for all faith leaders in Singapore and interfaith youths. 4) Blood donation drive in a mosque which is open to all faiths.