Britney Spears, fresh out of rehab and back in the spotlight, is explaining why she publicly shaved her head back in February, following a rampage of bizarre behavior.

Here is the so called explanation.

A friend of Spears says the pop star shaved her head as a tribute to her aunt who died from cancer. The pal states Spears was definitely suffering from postpartum depression at the time and the bold hair maneuver was an act of solidarity.

“Britney’s aunt had just died of cancer,” says this friend. “She was feeling very guilty because she hadn’t been there with her, she was overwhelmingly depressed and she shaved her head in solidarity.”