Hey Ocean currently appears to be performing instead at SXSW (South By Southwest) festival in Austin for three consecutive days.
I've done some digging and found where they'll be performing and, in some cases, when.
Day 1: March 13, Wednesday. They'll be performing at the Canadian Blast BBQ party at an undisclosed time, but definitely between 2 PM and 6 PM. This is located at SXSW's East Tent located at Neches and E 5th Street.
Day 2: March 14, Thursday. They'll be performing at an undisclosed time at the Vyclone party taking place in and around a vintage London double-decker bus located in a parking lot at 314 E Caesar Chavez.
Day 3: March 15, Friday. They'll be performing way late at night as a showcase performance at a place called Maggie Mae's at 323 E 6th street from midnight to 12:40.