Marlisa, 15, wowed Australia with her voice. Her transformation from being a shy 14-year-old during the auditions to a confident young lady during the finals was very remarkable.
She sang three songs during the finals - her audition piece, a duet with Jessica Mauboy, and her winner's single. Check out her performances in the videos below.
Audition Song - "Yesterday"
Winner's Single - "Stand By You"
Duet with Jessica Mauboy - "Never Be The Same Again"
She also did a duet with the runner-up, Dean Ray.
Now here's the announcement of the winner:
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Photo: Facebook (The X Factor Australia)
Videos: YouTube (J1MZO7)