(Newser) – Stardom may be going to Justin Bieber's head. Sources close to the young rocker tell the New York Daily News that he has a significant pot habit, and "doesn't listen to anyone anymore." Bieber "doesn't seem to care and does whatever he wants," one source says. Another agrees: "He smokes weed all day, from the time he gets up, and orders everybody around. He's surrounded by hangers-on who say 'yes' to anything he wants. There's no supervision."

Some sources cited his sometimes-relationship with Selena Gomez as a possible source of stress, while others said that his family was constantly asking him for money. "This could really damage his reputation if they don't get it under control," one source said. "Just look at what happened with Britney Spears." (Read more Justin Bieber stories.)

