Lady Gaga’s acting career took off with a bang in 2018, when A Star Is Born became a global sensation.

The film dominated conversations for months, earning eight Oscar nominations and turning Shallow into a huge hit.

To the outside world, it looked like a peak moment in a relentlessly upward career for Lady Gaga.

But the popstar, 39, has now revealed that things were very different behind the scenes.

In a new interview for the December issue of Rolling Stone, published just days after her album Mayhem picked up seven Grammy nominations, she speaks with startling directness about what was really happening during that era of her life.

She admits she filmed the movie while taking strong psychiatric medication, saying flatly: ‘I did A Star Is Born on lithium.’ The medication stabilised he

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