Britney Spears lands in rehab again

Here's the official statement from her peeps:

"Britney Spears has voluntarily checked herself into an undisclosed rehab facility today. We ask that the media respect her privacy as well as those of her family and friends at this time."

Most of us (whether we care or not) are still left wondering why she went wacky and cut off all of her hair.  OK! Magazine is reporting that it is because K-Fed threatened to get a few strands of hair to find out what she is on...

"They had a huge argument," accoriding to OK!. "Kevin threatened Britney that he was going to have people test her hair to find out exactly what she's been up to. She was so scared. That was what made her have her head shaved."

I find that highly unlikely considering she left all of the hair there... so I'm still wondering...