She even signed some of the boxes
The video is the first to have been shot entirely on IMAX cameras
It's called 'Sledgehammer' and it's rumoured to have been written by Sia
Titled 'Sledgehammer', the track is due to premiere tomorrow (June 26)
Twitter account @PopCrave has spotted a promo for the track on iTunes
Singer breaks down after arriving 30 minutes late on stage
The duo's latest collaboration has already reached Number Two in the UK
Colombian artist Juan Sebastián Peláez is displaying the work at the Biennale for Contemporary Art
Rihanna and Mike Will Made It previously worked together on her single 'Pour It Up'
Features on two new Rihanna remix EPs