@dailymail: London was filled with people wearing bald caps as Pitbull fans set a new world record for the largest gathering of people wearing bald caps. The record was broken during Pitbull's headline concert at Hyde Park, where thousands of fans copied the rapper's famous bald look. To be eligible for the record, Guinness World Records adjudicator Will Munford, told Reuters that the bald cap must be 'securely on the head, and there is no hair coming out the front or the sides of the cap.' #pitbull #entertainment #concert #music