Almost like the yin and yang of k-pop, two very opposite groups had unique performances today on Music Core as they both performed outdoors. Kicking off the upcoming summer season with mind-blowing special stages. f(x) performed their chart-topping track NU ABO, while Norazo performed Help Me. Kind of funny to see the background people during the Norazo performance. Let's start it with f(x), shall we? And here is Norazo!