Fifth Harmony’s television debut of their new single “Down” rocked New York’s Central Park on Friday morning as part of the Good Morning America Summer Concert Series. “Down” marks the girl group’s first single as a quartet, and by the time they took the stage on Friday, it had already shot up to No. 2 on the iTunes charts. In addition to “Down” (which featured a surprise appearance from Gucci Mane), the four-piece band performed their hit singles “Worth It” and “Work From Home” with help from Ty Dolla $ign. Check out some photos from the performance!