By Sam Lock For Daily Mail Australia
Published: 00:01 GMT, 1 March 2019 | Updated: 00:31 GMT, 1 March 2019
They both identify as bisexual and have actively campaigned for marriage equality.
And now The Veronicas singer Jessica Origliasso and her new partner Kai Carlton are preparing to celebrate Sydney's Gay and Lesbian Mardi Gras together.
Ahead of the parade on Friday, the 34-year-old pop star posted a gushing public tribute to her non-binary partner on Instagram.
'You are the most gentle and kind soul': The Veronicas' Jessica Origliasso (left) posted a gushing tribute to her partner Kai Carlton (right) on Friday
'There isn't an hour that passes where you aren't reminding me of my worth or showing me how special you think I am,' she wrote.
'You are the most gentle and kind soul, wise beyond your lifetime,' she continued.
'When I cry or panic