Concert promoters MCD have issued a warning to Guns N' Roses fans ahead of next month's Slane Castle gig about banned items which they will not allow into the grounds.
They include: iPads, selfie sticks, backpacks, Light sabers, sky lanterns, food, animals and tridents are all banned.
MCD said: "All the above items will be confiscated and will not be returned, Anyone resisting confiscation of restricted items may be evicted.
Pocket-sized cameras are permitted for personal use only.
MCD also said that crowdsurfers "will be removed from the venue without a refund". We're betting people will probably still try.
Guns N'Roses will start the next leg of their Not in This Lifetime Tour 2017 on Saturday May 27 at Meath's Slane Castle.