WATCH: Is this the cruelest prank you could play on a music fan?
This Irish teenager was the victim of a brilliantly cruel prank.
Lucy Power is a big Justin Bieber fan.
So imagine her delighted when she received a phone call from the 'presenters' at Irish station iRadio, informing her that her mother had entered her into a competition to win a pair of tickets to the Canadian popstar's gig and she'd won.
Lucy couldn't believe her luck and took to Snapchat to share photos capturing her delight.
But her delight soon turned to disappointment when the moment of truth kicked in.