Erin Clare, star of the worldwide smash hit musical We Will Rock You, will sing the Australian National Anthem before State of Origin I at a packed ANZ Stadium in Sydney on Wednesday.

Erin was awarded a full scholarship to attend LaSalle College of the Arts where she graduated in 2013 with a Bachelor of Arts, First Class Honours in Musical Theatre.

During her time in Singapore, Erin had leading roles in The Spitfire Grill and Gypsy and toured South East Asia. Since returning to Australia Erin has played the title role in Snow White Winter Family Musical directed by Bonnie Lythgoe, and performed the role of Christine in The Phantom of the Opera directed by Neil Gooding.

Her most recent featured role was Heather McNamara in the Sydney and Brisbane seasons of Heathers, presented by Showqueen Productions and directed by Trevor Ashley. Erin is also an accomplished musician and songwriter.

"As a proud New South Welshman from the Blue Mountains, I'm thrilled to be performing the national anthem at the State of Origin, and barracking for the Blues," Erin said.

"It'll be a little different from singing the songs of Queen eight times a week in We Will Rock You. I can't wait for Wednesday!"

We Will Rock You has returned to Australia and is currently playing at Sydney's Lyric Theatre. The show then travels to the Lyric Theatre, QPAC, Brisbane from 10 July; then on to Melbourne's Regent Theatre from 30 August. Perth's Crown Theatre follows from November, then the Festival Theatre, Adelaide from January, 2017.