A crowd slowly gathered as the teen sensation and his team of dancers and musicians rehearsed for about two hours Friday afternoon. MTV representatives said they hadn't announced Bieber's outdoor rehearsal to avoid drawing the swarms of fans who have crowded the 16-year-old pop star's public appearances around the world.
Passers-by wielded camera phones from behind barricades as Bieber sang his hit "Baby." He is set to perform on the same stage outside of the Nokia Theatre during Sunday's show.
