Impossible singer and X Factor winner 2013, James Arthur, is battling depression and anxiety attacks following a public backlash, according to his sister.

The 25-year-old star has faced a storm of criticism in recent weeks after using a homophobic slur in a recent rap song.

Speaking to Britain's Sunday Mirror, Arthur's older sibling, Sian, said: "We've been so worried about him this week, he's been diagnosed with depression and anxiety attacks.

"He put it really simply to me. He just said, 'Fame has mentally broken me'. Sometimes I wish he'd never won X Factor.

"Despite finally having what he's always wanted, he says he feels like a caged animal surrounded by yes-men and is really lonely."

Arthur recently scrapped a series of shows and appearances due to "acute exhaustion".

However, he is still tipped to perform on the X Factor UK tonight.