Vidgen performed on the first semi-final show, singing a cover of "And I Am Telling You I'm Not Going" from the Dreamgirls soundtrack. After the performance, he earned another standing ovation from the judges and audience. Sandilands told Vidgen that he made him believe in reincarnation as he was sure Vidgen had a black woman inside him, while McFadden said Vidgen had one of the best voices he had ever heard. After winning the public vote from the first semi-final show, Vidgen progressed through to the next round, the final showdown. During this round, Vidgen performed a cover of Adele's "Set Fire to the Rain". After his performance, judge Dannii Minogue said, "Your voice lifts everybody who listens to it", while McFadden joked that he was jealous of Vidgen because he spelled the end for other guys in the music industry. Vidgen once again won the public vote, which made him progress through to the grand final. During this round, Vidgen performed an original song titled, "Yes I Am". A few days later, Vidgen was the centre of criticism over the song when it was revealed that it was co-written with two other people. Critics questioned how involved Vidgen was in the writing of the song.  On 7 August 2011, Vidgen appeared on Sunday Night and said, "I sort of wrote the lyrics, and then I took them to vocal coach Erana Clark's studio, and we had the producer – I didn't write the music, I can say that, but I did write the lyrics. "