The star and her management have been accused by MGA Entertainment of requesting a voice chip be removed from a doll made in her likeness, meaning its planned Christmas 2012 delivery time will be unable to be met.

The company claims Lady Gaga acted in bad faith as she wants to put the release of the doll on hold until her new album and perfume come out in 2013.

According to the New York Daily News newspaper, MGA said those around her had "engaged in intentional and deliberate delays" to the doll - which Gaga reportedly wanted to have a removable head which revealed a bloody stump and a "supermodel" like face with a "sharp jaw-line" and "cat-eyes".

However, her spokesperson Amanda Silverman has claimed she will "prevail" over the court case.

She said: "Lady Gaga will vigorously defend MGA's ill-conceived lawsuit and is confident that she will prevail."

The representative added the actual dispute was between MGA and Bravado – part of Lady Gaga's record label Universal – and there was "no legitimate reason" to bring her into the issue.

In addition to the damages, the company is also requesting it can distribute the doll in its current format.