After facing breast cancer twice, and suffering from Crohn's Disease from the age of 13, Anastacia, now 49, is back in the spotlight.
The American-born popstar has appeared on the Italian version of Dancing With The Stars in a special one-off performance.
However, the singer unfortunately suffered a wardrobe malfunction, flashing her nude underwear to the audience and judges as she was lifted up into the air by her dancing partner.
Despite the awkward moment, the judges praised Anastacia for her special performance.
You can watch Anastacia's Dancing With The Stars performance here:
Or relive the noughties with her smash hit 'Left Outside Alone' here: