Following a week of speculated legitimate leaks, Beyoncé's 'Girls (Who Run The World)' has now been made available on iTunes.

The single was originally tipped for a mid-June release, but last night a promotional video was unveiled that explained the single would be unleashed to the public today, April 21. 

In the video, fans are shown a delapidated car with the word 'revolution' sprayed onto its side in red paint and the 'Halo' singer herself riding a rearing horse. Listen to the single here: