Justin Trudeau and his wife Sophie have arrived in Germany ahead of this weekend's G20 Summit, but not before making an appearance at Hamburg's Global Citizen Festival to discuss the importance of gender equality and empowering women. The couple joined a star-studded line-up which included Coldplay, Shakira, Pharrell Williams and Ellie Goulding in the hope of raising A$871.5 million from governments for dealing with international health, gender equality and education issues.

Before introducing Coldplay, who have made a long-term commitment to the organisation, the Trudeaus spoke out about the fight for "fairness and equality" in every global issue beginning with the empowerment of women and girls in every social and political circumstance.

Canada's Prime Minister Justin Trudeau, and his wife Sophie speak to the crowd during the Global Citizen Festival concert on the eve of the G-20 summit. Credit:AP

"The really big issues we face, like climate change, poverty, and disease affect women and girls more than anyone else," Sophie said, as she noted Canada's commitment in introducing Canada's first Feminist International Assistance Policy.