After Lila Test bought her son, Johnny Test, a drum set and her daughter, Mary Test, an electric guitar, both sister and brother went to the concert on stage to play a song. Mary was going to sing "Eep Opp Ork Ahh Ahh", Susan Test's favorite song. Mary played her electric guitar and Johnny played his drum set, and Mary began to sing. She sang beautifully. After the song was over, everyone cheered for Mary and Johnny. They loved their song. One of the judges gave Mary and Johnny a trophy for being the best. Mary and Johnny were so proud of each other. Everyone was happy.