GaGa accused of copying collaborator

Lady GaGa has been accused of stealing a former collaborator's performing style.

The mother of Lina Morgana alleges that her daughter, who worked with GaGa in 2007, was the inspiration for the 'Alejandro' star's eccentric stage persona.

Morgana was introduced to GaGa by the singer's former mentor and ex-boyfriend Rob Fusari. The pair co-wrote several songs before the 19-year-old committed suicide in October 2008.

The late performer's mother Yana has accused GaGa of adopting Lina's characteristic look during her rise to fame, and wants the popstar to acknowledge her daughter's influence.

She told the New York Post: "I'm doing this because I want to keep her spirit alive. Lady GaGa is holding Lina's soul and I want her soul to be free.

"Every other word she says is from Lina. She talks about having a dark and tragic life, but she had everything she wanted in the world. She went to [the same] high school as Nicky Hilton, her parents were rich. But Lina did have a tough life, and she often talked about her tragic life."

Yana has released images of Lina sat at a piano in a latex bikini as proof that GaGa's imposing costumes were inspired by Lina's image.

"Lina had that style," she said. "GaGa had a different style. She changed dramatically overnight."