Crazed Justin Bieber Fan Vows Revenge on Poster-Tearing Non-Belieber Matt Cherette · 09/01/10 01:14PM Do you know who Sydney Dalton is? No? Well, she's a girl who uploaded a video to YouTube of her and her friends ripping Justin Bieber posters from her wall. Now, a crazed Belieber named Hannah has vowed physical revenge.