Lady Gaga shares photo of naked self with mutiple tattoo in a bathtub

What will you call this, Lady Gaga has done it again, she shared a photo of herself having a wash in green water,  just wondering what is with the colour green, the other day,  while performing  in Austin Texas, she asked a friend to vomit on her , and it was a weird  greenish substance She shared this pic a day later I'm guessing she is showing  she'd cleaned up...