International advocacy organization Global Citizen has announced that Grammy Award-winning artist Pharrell Williams and German superstar Andreas Bourani will perform at the Global Citizen Festival Hamburg, a free-ticketed concert on Thursday, July 6th at the Barclaycard Arena. The organization also announced that Shakira will accompany Coldplay in a special set. Herbert Grönemeyer and Ellie Goulding … Continue reading Shakira, Pharrell among Global Citizens Fest additions