“I’m sorry Will Smith, this is now the official World Cup song” Egill ‘Gillz’ Einarsson or DJ Muscleboy (Instagram: @EgillGillz) is a television celebrity, actor, two times best-selling author, a fitness coach and a DJ from Iceland. You might remember his first Song Louder which we wrote about on Broscience. Louder was 8 weeks on […]

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