Ever the rebel, superstar Madonna is letting it all hang out… and she’s not worried about it.
The "Girl Gone Wild" singer uploaded an Instagram photo on Thursday, dressed in a lacy black bra and bow tie, exposing lengthy underarm hair. "Long hair...... Don't Care!!!!!! #artforfreedom #rebelheart #revolutionoflove," she captioned the shot.

Art for Freedom is a global initiative, helmed by Madonna and VICE, which aims to encourage creative expression that brings awareness to human rights violations, and "start a revolution of love." Fans are encouraged to contribute art that promotes freedom of speech.