In a candid moment during her Las Vegas residency, Adele disclosed that she had suffered a debilitating attack of sciatica, a condition caused by a slipped disk pressing on the sciatic nerve, which runs from the lower back to the foot.

The pain can be excruciating, causing shooting pains and a cramping sensation that can render someone unable to walk.

Adele even had to take a seat during her performance and explained to the audience that she needed to rest her sciatica.

Unfortunately, Adele's back woes have been plaguing her throughout her Las Vegas residency.

During another performance earlier this year, the singer confided in her audience that her chronic sciatica was hampering her mobility.

As she waddled across the stage to launch T-shirts into the crowd with a handheld cannon,

she lamented: 'I've got two more, I've just got to get over to the other side of the stage.