Ten years after finding a permanent home in Chicago's Grant Park, Lollapalooza beat 2015's mid-summer heat with a lineup of artists that crossed genres and stretched across seven stages. Some 100,000 fans came out to party each of the three days, which culminated in sets by headliners Paul McCartneyMetallica and Florence and the Machine. When not basking in the music, attendees scrambled to find shade, sang along to "Hey Jude," sampled weird treats and evacuated for severe storms. These are the best things we saw, heard or tasted along the way.