Philip Cosores Daisy Chain Fields was a success even before gates opened. Olivia Rodrigo’s one-day, women-led lineup music festival, held this past sweltering Saturday in Irvine, California, raised $10 million for 10 non-profit organizations that advocate for women and girls. That number was doubled to $20 million by Melinda French Gates during a surprise appearance at the festival. Rodrigo isn’t just one of the biggest pop stars (and rock stars) in the world — she’s also using her platform to make the world a better place. The goal of Daisy Chain Fields was to “[bring] together women in...