Michelle Obama got a 'Formation' makeover for Beyoncé’s birthday and Harvey relief efforts

Former first lady Michelle Obama joined a star-studded tribute that wished Beyoncé a happy birthday on Sept. 4 while also encouraging people to donate to relief efforts for people affected by Hurricane Harvey in Beyoncé’s hometown of Houston. Obama and 17 other women each recreated the distinctive look from Beyoncé’s “Formation” music video. In the black…