In a recent installment, I ran down a list of unintentionally hilarious moments in hair metal history. At the time, I wrongly assumed that accidental humor was the sole proprietorship of rock videos made between 1985 and 1995. Now, it's 2012 and seminal pop metal band Van Halen not only resurrected David Lee Roth as their lead singer, but they've also brought back unintentional humor in ...