Day two of the San Francisco music festival featured some outstanding, dueling headlining sets from pop superstar Sabrina Carpenter (with special surprise guest Kacey Musgraves) and The Postal Service at the opposite ends of the festival grounds, plus an absolutely mesmerizing set from the music/fashion icon Grace Jones. Check out the gallery, which includes K. Flay, Romy, Charley Crockett, Schoolboy Q, Men I Trust, BLTHVS, French Cassettes, DARUMAS, and AG Club.