On Thursday, Lollapalooza officially kicked of at Chicago's Grant Park with performances by The Strokes, The Chainsmokers, King Princess, H.E.R., Hayley Kiyoko, YBN Cordae and many more.
A lot of great stuff happened on day 1: Harry Hudson joined Jaden Smith, Normani rolled out her hits (without even having a full-length project out), Kiyoko performed her new single "I Wish" and lots more.
As the festival went on, artists took to Twitter to share a couple of epic moments from the sunny day.
Check out the best tweets from day 1 below.
Fitz & The Tantrums
Win and Woo