Sia went undercover for Thanksgiving and did something absolutely amazing. She basically hid in plain sight, went to a Wal Mart in Palm Springs California, not wearing her wig and just started paying for peoples groceries who were in line.
At first she wasn't recognized because she always covers her face with her wig, so she told everyone she had just won the lottery and just wanted to do give back for Thanksgiving. How amazing is she for helping people out during the holiday!!