NEW YORK, May 2: Almost 20 years have passed since R&B fans first took notice of Usher Raymond on 1994’s debut album “Usher.” At that time, he was just a baby-faced teenager singing about things he hadn’t yet experienced. Over the years, fans have watched Usher grow into a man and become one of the top-selling pop stars of the last two decades, documenting his personal highs and lows through his music. (agencies)