Since 1971, Seattle has held a music and arts festival called Bumbershoot on the grounds surrounding the iconic Space Needle on Labor Day weekend. A bumbershoot is an umbrella, and is a must bring to Saturday's proceedings, which included wet sets on the Mural Amphitheater stage from the likes of Kacey Musgraves and Chris Stapleton. As the Weeknd warbled in a gigantic football stadium a short walk away, Kacey Musgraves took the stage, her band outfitted in pink cowboy suits with blinking lights.a tipsy, tallboy-fueled crowd swayed appreciatively to such hits as "Follow Your Arrow," "Merry Go Round" and "Biscuits" . For neo-traditionalists, the Stapleton-Musgraves coupling was a way back to go forward