Serious request is a fundraising event by 3FM which are raising funds this year for 'Spieren voor Spieren' to raise money for new research, new treatments and new medicine for kids with a muscle disease. During the Dutch 3FM Serious Request, three radio DJs of the national channel (NPO) 3FM are locked up for six days in a small temporary radio studio. It is placed in a main square in Den Bosch. During the event, they live on a liquid diet.