Bieber Fever Infects Selena Gomez, Allison Iraheta And Other Stars

'Bieber fever, man, call the doctor,' says Nickelodeon star Victoria Justice.
As Justin Bieber's My World 2.0 tops the Billboard albums chart, it's starting to feel like the whole world has a case of Bieber fever. And in addition to the legions of screaming teen girls who love the 16-year-old, young celebrities appear to be succumbing to Bieber's charms too."The Last Airbender" star Nicola Peltz