The singer, 35, was visibly upset in a video where she accused public health minister Sharon Hodgson of arguing against a full screening roll-out.

The singer announced earlier this year that her twins, Ocean Jade and Story Monroe Nelson, were diagnosed with spinal muscular atrophy.

The singer took to Instagram to reveal that she has become a patron of the charity.

The petition was launched on Thursday morning.

The singer launched the petition after her twin babies were diagnosed with SMA1.

The Government is required to respond to the petition if it reaches 10,000 signatures.