During tonight's episode, she belted out "Listen" by Beyonce, which earned her the Golden Buzzer from guest judge Jessica Mauboy!
WATCH: Olina Loau belts her heart out to Listen by Beyonce for the AGT Semi-Finals!
"I have a vested interest in this schoolgirl from Western Sydney," Ricki told to the audience before Olina makes her way to the stage.
"I gave her my Golden Buzzer in the auditions. She has a vice that just blew me away."
Olina's performance was just as good as everyone expected.
"Olina - you are exquisite - you could absolutely win this competition. you a are a star!" judge Lucy Durack told her.
Nicole Scherzinger was "blown away" from her performance, Jessica Mauboy was completelly overwhelmed by the young-girls talents.
"Honestly bub you are so epic. You're poise, like grace on stage... your infusion of your life story so far was absolutely incredible. You had me in tears. Having such control in something and power in your story is everything and you absolutely owned that bubba. Love you. You know what this is an absolute honour for me to do this but I just... WOW!" Jessica exclaimed, before giving Olina her second Golden Buzzer.
The best news? Olina made it through to the Grand-Final!
Watch more of 'Australia's Got Talent' on Channel Seven.