Joss Stone's ex-boyfriend has claimed that the star's music career comes at a price - she regularly suffers from loneliness.

Beau Dozier - who was the singer's first serious boyfriend - revealed that Joss is desperate to secure long-term success but struggles with the sacrifices she has made over the years.

"She doesn't have a life. Her whole life is her music," Beau told the News of the World. "She has sacrificed so much and it's difficult for her. Life on tour is a lonely road and she suffers from loneliness a lot. She'll often be on her own in hotels crying herself to sleep. Success is everything to her."

He added: "She is so driven. She never thinks her music is good enough. She didn't feel her first two albums were good, even though they were amazing. She's a perfectionist. I don't think she'll ever be satisfied."