During Red Hot Chili Peppers' energetic set at Wembley Stadium, bassist Flea took a moment between "Dani California" and "So Much I" to recite an oddball rap. "Space-age couple," he shouted, "why do you hustle 'n' bustle? Why don't you cultivate the ground? You're the only ones around." Classic rock fans might know that the lines were borrowed (and slightly modified) from Captain Beefheart's "Space-Age Couple." Flea didn't recite all the lyrics, but they happen to end with this environmentally-oriented couplet: "Scooped up a little of the sky and it ain't blue no more / What's on the leaves ain't dew no more."