The youngster is seen with her parents before heading out on stage alone to sing and play the guitar for the judges.
And Lauren has an unusual choice in music, performing Keri Hilson track Turn My Swag On as this preview clip shows.
Guest judge Carmen Electra seems to love her, as does the audience, but will the other judges say yes?
Tune into the show tomorrow night at 8:30PM on ITV1 to find out!
Watch [tag]Lauren Thalia[/tag] on Britain's Got Talent 2012 below...