Core Hydration Classic in Illinois. Jackson was acrobatic, agile and landed their flips perfectly. Before they left the mat, they waved to the crowd, triumphantly pumping their fists in the process.“[Jackson Harrison] is an icon!,” blared USA Gymnastics’ official Twitter account.We agree!OBSESSED ?@jacksonharrisno is an icon!#CoreClassic is on now! ?? https://t.co/dBfEkRZAUh pic.twitter.com/3hAuKV1wlPLOVE YOU LOVE EVERYONE https://t.co/c3hUCdP3YkYOU DID SO GOOD I ALMOST CRIED LIKE THE MOST SECURE ON LANDINGS OF THE MEETu are such a star bb!!!You did so well!!SLAYYYYYYHarrison also celebrated their big moment on Instagram, earning a “like” from heartthrob Brazilian Olympian Arthur Nory.A post shared by USA Gymnastics (@usagym)Harrison, who turned 21 earlier this summer, is in the midst of an incredible season.