Britney meltdown continues

I generally like to limit my popular music commentary to the substantive--that of the music itself, along with awards and album/tour rumors, etc.--but I can't help but comment on the nutty downward spiral Britney Spears appears to be in. What's going on with this woman? Within the last week she spent several days in New York on a clubbing party binge, spent less then a day in rehab, and now, she's gone and shaved her head. What's next?