GGOOLLDD isn’t like other bands. They formed on whim, decided to play their first show mostly as an excuse to host a killer party, and they eschew the traditional gotta-get-a-record-deal game in favor of playing a lot of shows and releasing their own material. That sense of whimsy blended with resolute autonomy is all part of the signature GGOOLLDD aesthetic. And it feeds into their sound, especially lately. “Undercovers,” their new single, is a soaring banger that conjures wind-in-your-hair glittery romanticism.