Photos: What we saw at Lollapalooza Day 2

On Day 2, fans were greeted with a forecast of heavy rain and a light sprinkle starting around 2 p.m. Plastic ponchos quickly became the day's reigning fashion trend. But anticipation for the evening's headliners — Charlie xcx and The Smashing Pumpkins — remained in tact judging by artist merchandise parading through the grounds. Bunny ears signaled fans of Slayyyter, the rising Missouri-born pop star, in the mix. Other artists on the day's schedule include 'Stranger Things' star Finn…