Abraham was narrowly beaten to the top spot on The X Factor by Shayne Ward by 1.2% of the national public vote. Abraham was mentored throughout the competition by Sharon Osbourne although fellow judges Simon Cowell and Louis Walsh also praised the singer highly throughout the competition. Other performers who came to prominence in the same series of The X Factor were finalists Journey South and quarter-finalist Chico Slimani.
On 26 March 2006, Abraham's debut album entered the UK Album Chart at number two, selling 176,000 copies in its first week and being beaten to the top spot by Journey South.
In 2006, Abraham's debut album was the twelfth highest selling album of the year with total sales of around 300,000.
Abraham's second album, Soul Man, was not as popular yet it still managed to make the Top 20 in the UK Charts. The album included the Christmas song "December Brings Me Back To You", a duet with television presenter Michael Underwood.
A Very Best Of album was released in May 2008.
His third studio album, Even If, was released in June 2008 to positive reviews, and its title track reached number 67 in the UK Charts. Album sales were not helped by its distribution company Pinnacle Entertainment (UK) going into administration due to the downturn in the economy. The album was released digitally on iTunes in March 2009.
Abraham released the Christmas single "Oh Holy Night" in December 2009.
On 3 August 2008, it was reported in The Daily Star Sunday newspaper that Abraham had told friends that he would not release any further material, and instead he would concentrate on becoming a property developer. However, on 6 August 2008, Abraham announced on his website that this was not true.
In January 2010 Andy signed up with celebrity management agency Champions (UK) Plc who are working on new material with Andy as well as a number of exciting projects. On 14 March 2010 Andy performed at Arsenal footballer Theo Walcott's 21st birthday party, alongside Beverley Knight.
In 2012 Andy released his fourth album "Remember When", a collection of the songs that influenced him over the years and two new songs. It was released as a book package, with Andy's comments on why he chose each song for the album, some copies also came with an accompanying making of DVD.
On 1 March 2008, Abraham won Eurovision – Your Decision 2008, the UK selection for the Eurovision Song Contest 2008, held on 24 May 2008, with his song "Even If". He was selected as a wild card in Eurovision – Your Decision by Terry Wogan and won the contest in a sing-off with favourite Michelle Gayle through a public vote.
In the final, Abraham finished equal last of the 25 entries, sharing 14 points (obtained from San Marino and Ireland) alongside Germany and Poland. In addition to becoming only the second UK act ever to come last in Eurovision, Abraham also became the first since 1989 not to hit the top 40 singles chart, peaking at number 67. Of all the UK entries that have made the singles chart (only three did not), it is the second least successful ever.
Andy Abraham did a variety of shows up and down the country. In his show An evening with Andy Abraham, he sang "Whenever you need me" with a children's choir. The children's choir were named by Andy to be the best kids he had worked with and were featured in the stagecoach magazine.
During 2012-2013 he has toured both in the "History of the Big Bands" and "Boogie Nights" as lead vocalist.
In April 2015, Abraham took to the stage in the musical Godspell. The show concluded in May.