Britney 'too weak' to handle fame, says Lavigne

Britney Spears is to blame for her recent meltdown because she's too weak to handle her fame, according to pop rival Avril Lavigne.

The Sk8r Boi star claims Spears cannot point the finger at the media for her headline-grabbing spells in rehab and her bizarre hair-shaving episode - because all celebrities have to deal with the fame that comes with their success.