But now it's straight up cancelled!
Ticket holders were sent the following email on Friday:
[Image via Fayesvision/WENN.]
What a year it's been for fun.! Tonight, they are
From relative obscurity to their first Grammy win in under 12 months, what an incredible ride!!
And they beat out Alabama Shakes, Hunter Hayes, The Lumineers and Frank Oceanwho were also nominated for Best New Artist!
Well done, lads! Well done indeed!
[Image via AP Images.]