"I'm just such a fan"
The cryptic collective had been teasing the reveal for a number of weeks
They first teased the one-off London show in an Instagram post last week
It was the final show of Little Simz's 'NO THANK YOU' tour
Coldplay, Dave, RAYE, Laura Mvula, Sleaford Mods and PinkPantheress are among others nominated for this year's awards