Darius Danesh says he is glad to have got rid of his old image.
The Pop Idol hopeful has ditched his goatee beard and ponytail.
He says they made him look like "a Greek tour operator or an Italian waiter".
"In many ways when I got rid of them I was not only saying goodbye to an odd image but also getting rid of insecurity," said Darius, who was a loser on Pop Idol's sister show Popstars.
"I was hiding behind this super-confident front and facade and I was naive enough to do it on national TV."
He is performing Something Inside So Strong in the last of the Pop Idol heats on ITV1 on Saturday.
Darius says he regrets his claim on national TV that he would go triple platinum by the age of 35, adding that he was "naive and flippant".
He said: "I just want to be happy and sing and have this love of music inside me which makes me feel happy and alive and affects people around me.
"I haven't rediscovered myself, I just feel comfortable with who I am at last."
Darius and Rik Waller are favourites to make it through to the final.
This week's other eight contestants are: Aaron Bayley, 26, from Newcastle; Sarah Whatmore, 20, from Manchester; Hayley Bamford, 20, from York; Joanne Slattery, 24, from Southport; Jade Cannell, 19, from Portsmouth; Vanessa Cavanagh, 18, from Middlesex; Rachel Makins, 21, from Melton Mowbray; and Davina Perera, 24, from Orpington.