NEWARK - Lady Gaga appeared tonight in concert tonight at the Prudential Center in Newark.

Several dozen of Lady Gaga's fans whom she refers to as "little monsters" lined up early for tonight's concert. Many of the singer's fans are wearing their own versions of her get-ups. The fans told News 12 New Jersey that a Lada Gaga concert is known as a Monster Ball. One fan says he's already been to nearly a dozen of her shows.