The credits on the Promo are as follows -
Produced by Brian May
Co-produced and Engineered by Justin Shirley Smith
Pro Tools by Kris Fredriksson
Recorded at Lead Studios Rome, Sphere Studios Battersea and Allertonhill Surrey
Assistant Engineers Giacomo De Caterini and Ricky Graham
Additional Pro Tools Joshua J Macrae
Equipment Pete Malandrone
Vocals, Britney, Beyonce and Pink
Guitars and Bass Guitar Brian May
Stomps and Claps Queen
Drums Roger Taylor
Backing Vocals Queen, Suzie Watts and Zoe Nicholas
Sound Effects Alex Nicholls-Lee
Project Co-Ordination Ellen Healy