It’s been reported that the performer, who has appeared in the German versions of I’m A Celebrity…Get Me Out of Here and Celebrity Big Brother, died from organ failure at a Hamburg clinic.

Naddel died on May 9, however, her death has only now been made public, reports The Mirror.

As well as her TV and music career, Naddel was also known for her relationship with music legend Dieter Bohlen, 71 – who is one have of pop group Modern Talking.

Dieter, who dated Naddel on and off between 1989 and 2001, paid tribute to his ex on Instagram

Alongside a video of the pair on stage together, he simply penned: ‘I am very sad. Rest in peace Nadja’.