Photos: Jennie, Olivia Dean, Geese, Leon Thomas at Lollapalooza Day 3

Day 3 of Lollapalooza was delayed as heavy rains overnight pushed back the opening of doors until 3 p.m. Saturday as crews worked to clean up the grounds. As soon as doors opened, attendees made the mad dash to the artists kicking off the day, including K-pop sensation Cortis, which drew a massive crowd at the T-Mobile stage. Those who made it to Austin metal-punk rebels Die Spitz at the Airbnb stage were greeted with their next feat: dealing with an overwhelming amount of mud…