Tamaddon won the fifth series of Dancing on Ice on 28 March 2010, with skating partner Daniel Whiston. She returned with Whiston for the ninth series in 2014, which saw many of the previous winners and favourites from the show compete.
Tamaddon appeared on week 18 of the BBC children's television show, Hider in the House on 4 May 2008, which was filmed at a family household in Wortley, West Yorkshire. She was busted on challenge seven but said "Personally I think I have been one of the best hiders ever and it's been really good fun."[9]
Tamaddon appeared in Channel 4's Shameless as Calista, a lesbian who has a one-night stand with Karen Maguire. She also appeared in Waterloo Road as Zoe.
Tamaddon was crowned champion of the fifth series of Dancing on Ice, where she skated with professional skater and childhood friend Daniel Whiston.[10] Competing over 12 weeks in front of 10 million viewers, including their Jai Ho routine, she reached the final against Hollyoaks actor Kieron Richardson who came third, and Gary Lucy with whom she went head-to head in the Bolero. Tamaddon won the trophy with over 80% of the public vote and went on tour with Torvill and Dean.
Tamaddon has appeared on 96.3 Radio Aire in Leeds. Her first appearance was on the breakfast show in October 2009, when she presented with presenter Paul 'Griffo' Griffiths, who was covering for JK and Joel. She then spent a further week on the show, and in November once again covered with Griffo.[citation needed]
Tamaddon currently presents a Monday to Friday daytime show on Coastal Radio DAB, a radio station covering the Blackpool area.
Tamaddon was engaged to Darren Charles, a dancer and choreographer from Grimsby but called off the wedding after he admitted having cheated on her whilst she was filming Dancing on Ice. In the press, she later ruled out any possibility of a reconciliation.[15] She was in a relationship with comedian Marcus Brigstocke, with whom she had worked on Spamalot in 2010, leading to his divorce from his wife Sophie.[16]
In June 2014, Tamaddon was admitted to hospital after the pressure of working on Coronation Street and the Dancing on Ice tour became too much for her.[17]
On 22 April 2019, Tamaddon announced on Twitter that she was pregnant. Three weeks later she announced that the she and her boyfriend Adrian were also engaged. She gave birth to a son on 12 October 2019.[citation needed] On Mother's Day, 27 March 2022, Hayley announced that she and Adrian had split in a post on Twitter.[citation needed]