When Steven Tyler was 2 he was given a microphone stand for Christmas. He was so excited he immediatly wrote the vocals for all the Aerosmith songs ever released. When Joe Parry was 3 he was given an electric guitar for Christmas. He was so excited he immediately wrote all the lead guitar solos in every Aerosmith song ever released, and Harry Potter. When Steven and Joe met many years later in college, the merging of Steven's vocals and Joe's guitar licks made rock'n'roll history. The sludgy byproduct of the merging process resulted in U2.