Adele's ex-boyfriend has asked for a cut of her royalties for inspiring her hit album '19'.

The 'Someone Like You' hitmaker has revealed her former lover - who she has refused to name - repeatedly called her claiming she owed him money for the songs she wrote on her debut LP about their failed romance.

She is quoted by The Sun newspaper as saying: "For about a week he was calling and was deadly serious about it.

"Finally, I said, 'Well, you made my life hell, so I lived it and now I deserve it.'

"He really thought he'd had some input into the creative process by being a p***k. I'll give him this credit - he made me an adult and put me on the road that I'm travelling."

Although it was released in 2008, '19' is now number three in the UK album chart following the success of her latest record '21' - which has spent 14 weeks in the top spot in Britain - while '19' and '21' are placed at number 20 and number one in the US chart respectively.

Earlier this year, the 23-year-old singer admitted the tracks on '21' were inspired by her tumultuous love life, and specifically an "amazing, immense relationship" which came to an end.

She said: "I had the most amazing, immense relationship. It didn't last, unfortunately - it stopped being fun, but thankfully The Ending wasn't bitter. The whole thing changed me. It made me really passionate about love, life, me - pretty much everything."