Henry Gallagher, the 12-year-old who wowed judges on Britain’s Got Talent, has admitted that he is worried about telling the girl who inspired his self-penned track that the song is about her.

The schoolboy was one of the biggest hits of Saturday night’s talent show when he sang his own tune Lightning, about a girl who he has a crush on.

She has no idea that the song was written about her.

Henry Gallagher
Henry Gallagher (ITV)

Interviewed alongside his mother Marie, Henry told ITV show Lorraine: “She doesn’t know at all. I don’t think she will know at all.”

Asked if he was going to tell her, he said: “I don’t know because when I get back to school everyone will be watching me to see if I go to anyone.”

The schoolboy said that he would love to duet with Olly Murs, and added: “I just want to be a pop star and sell records and play in massive arenas because that’s all I have ever wanted to do.”

David Walliams, Simon Cowell, Alesha Dixon and Amanda Holden
The judges loved Henry’s audition (ITV)

Henry’s sister Ellen was on Britain’s Got Talent three years ago performing in a girl band.

Asked how he writes his songs, he said: “I sit in the kitchen with a keyboard. My mum plays along because she’s a music teacher with the keyboard, to get it in tune.”

His mother said: “I’m the proudest mum in the world… He likes to be in the kitchen (writing his music) where everyone is, rather than in the bedroom on his own.”