FRANCE-MUSIC-ROCK-FAMILY-LIFESTYLE

Students of the Park Slope Rock School perform on stage at La Bellevilloise concert hall, on January 17, 2016 in Paris. It is every teenager's worst nightmare -- or so you would have thought. Mum and dad up on stage belting out rock anthems in front of your friends. The horror! A few days before they face the toughest audience imaginable -- their children -- the graduates of what is touted as the world's first rock class for parents are joking about what's the more nerve-wracking, this or childbirth. / AFP / MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP via Getty Images)