Fresh-faced 15-year-old crooner Justin Bieber brought absolute pandemonium to the Nintendo store in New York’s Times Square today (September 1).

With his guitar in hand, Bieber — who rose to fame with the help of R&B star Usher — serenaded the crowd of screaming girls with tunes from his upcoming debut album, My World, like the first single, “One Time.”

If you haven’t already, be sure to check out Neon Limelight’s exclusive interview with the young star and see what all the buzz is about.