Sia and Maddie Ziegler have joined forces once again for an extremely moving music video for Sia's new song, "The Greatest." The video, which is book ended with Ziegler looking into camera crying rainbow tears, is theorized to be a response to the Orlando shootings that claimed 49 lives this past June.

The single dropped unexpectedly over the weekend, along with another version of the song (available on iTunes) that features a guest verse from Kendrick Lamar.