When Toby Keith first heard this song, conceived two years earlier by songwriter Jim Beavers, he said, “That is the dumbest thing I’ve heard in my life.” A song about plastic cups. Yet, not just any plastic cups, Beavers said — red Solo brand cups. “Everywhere I went, at football games and parties, I saw people using them,” he said. “It struck me it could be a song, and I wrote down the title.” Keith initially laughed off the novelty song, but the melody stuck in his head. So he decided to record it. The video — with its numerous cameos by showbiz and sports figures — went viral.