Tabby Callaghan
Tabby Callaghan (born Trevor John O'Callaghan; 22 April 1981, County Sligo, Ireland) is an Irish musician. He finished third on the first series of The X Factor in 2004.
Early career
Callaghan played in many collectives and groups as a teenager growing up in Sligo. With his brother Dominic formed his first real band, called Petronella around 1998. The band had some success in Ireland and their single "Feeling So Low" entered the Irish top 20 singles chart.
The X Factor
After Petronella dissolved, Callaghan then formed Boom, later renamed DZ5. DZ5 auditioned for the first series of ITV talent show The X Factor, unaware that the new show's willingness to accept groups only applied to vocal groups.
The panel of judges, Simon Cowell, Louis Walsh and Sharon Osbourne, advised Callaghan to re-audition as a solo singer in order to proceed in the competition. He was selected by Osbourne to be one of her acts at the live finals. He finished in third place overall. He later revealed that he had been advised by the show's producers to drop the 'O' in his surname to make it sound more commercial and less Irish.