Katy Perry made a sick fan’s day when she turned up unannounced to play a gig in her living room.
Eight-year-old Grace Moores, who had recently undergone surgery for a brain tumour, thought she was going to have to miss the concert.
She was diagnosed with a brain tumour in April.
The Australian KatyCat, who has been a Perry fan since she was three, had been given the tickets for her birthday more than a year ago.
However, a social media campaign started by Grace’s older sister Tiana – using the hashtag #helpGracemeetKatyPerry – brought the young fan’s plight to the popstar’s attention.
The original post received more than 21,000 retweets.