There were two, now there are four.

Pop singer-songwriter Amy Shark and alt-rock three-piece Something For Kate have been added to the VALO Adelaide 500 musical lineup, playing in the city’s green belt from 2—4 December.

The announcement of Amy Shark and Something For Kate’s bassist Stephanie Ashworth appearing at the gig brings the total number of female musicians booked to four – a 100 per cent increase on the number CityMag reported last month.

Adelaide-based multi-award-winning pop-punk outfit Teenage Joans – comprised of Tahlia Borg and Cahli Blakers – were the only band featuring non-males in the original bill announcement.

Musicians are scheduled to take the main stage from the second day of the Adelaide 500, performing after the high-octane car races.

Rock trio The Killers were announced as headliners as part of the first announcement, as well as home-grown talent Jimmy Barnes, synth-pop group Icehouse and revived hard rock outfit Noiseworks.

Contemporary acts, such as indie-pop two-piece Lime Cordiale and electro-pop act The Presets were also announced, as well as Indigenous rapper Baker Boy, who is one of two people of colour programmed to perform.

Baker Boy. This picture: Rachel Rachel

VALO Adelaide 500 event and concert manager Brian Gleeson says these recent additions were a “tremendous boost” for the car race, adding “Amy Shark and Something For Kate bring electric performances to every concert stage”.

“We are thrilled to have them in Adelaide for this event,” he says.

CityMag asked VALO Adelaide 500 whether these two female additions came off the back of prior criticism of the dude-oriented lineup, but we did not receive a response by time of publishing. We also asked why the original lineup featured almost totally white, male musicians, but again we’re yet to receive a response.

Girls Rock! Adelaide director Sianne van Abkoude previously told CityMag an artist being billed on any festival or lineup is an endorsement with real flow-on effects for their career, such as more paid work and brand visibility.

Last week, not-for-profit Music SA announced the return of the Bands On Track live music initiative, with Sianne one of three judges assessing bands vying for a spot on stage.

When pressed for an updated comment on behalf of Girls Rock! Adelaide, which aims to foster non-male musical talent, the organisation’s South Australian director told CityMag the organisation would not be able to provide a comment before publication.

Bands on Track gives six local bands the opportunity to play live on the VALO Adelaide 500 main stage. Those who’ve taken part in the initiative previously include South Australian groups Horror My Friend, Dead Roo and Seabass.

Applications for Bands On Track have closed, with industry workers Courtney Duka, Sam Lavers and Sianne now judging applications.