The logo shows Rio's most famous symbols -- Christ the Redeemer statue, Sugarloaf Mountain, the Brazilian coastline -- and the World Youth Day pilgrim's cross inside a heart symbolizing the heart of the disciple. The green, yellow and blue of the heart are the colors of the Brazilian flag.
Huguenin said he got the idea after reading a passage from the Gospel of St. Matthew. He said participation in the contest was an act of faith.
To celebrate the occasion Feb. 7, the Christ the Redeemer statue was lit in different colors, representing the 150 countries that will participate in World Youth Day.
Organizers confirmed that World Youth Day will be held July 23-28, 2013, with Pope Benedict XVI and youths from all over the world.
Last year's World Youth Day in Madrid was attended by more than1 million people.