judges houses stage, Walsh took his acts to Adare in Ireland. Walsh was helped by former judge Osbourne. His last surviving act, Mary Byrne, was a semi-finalist who finished fifth overall. Walsh returned to the show in 2011 for series eight. He joined new panellists Gary Barlow, Kelly Rowland and Tulisa, who replaced former judges Cowell, Minogue and Cole, all of whom left the show after series seven. This meant that, following Cowell's departure, Walsh became the only original judge left on the programme. During the Bootcamp stages it was announced that he would mentor the Over 25s category for the rest of the competition. In the Judges Houses stage, Walsh took his acts to Barcelona in Spain where he was aided by Cowell's former assistant judge Sinitta. Walsh chose Kitty Brucknell, Sami Brookes, Johnny Robinson and Jonjo Kerr to go through to the live shows. His most successful act of the competition was Brucknell who made it to week six of the live shows before she was eliminated. During the live shows of series eight, in an interview with former judge Minogue, Walsh stated that he did not know whether he would return as a judge in 2012. However, on 3 May 2012, Walsh confirmed he would return for his ninth series alongside Tulisa and Barlow. Former American X Factor judge Nicole Scherzinger who replaced Kelly Rowland joined Walsh, Contostavlos and Barlow as the new full-time judge for ninth series. Walsh filled for Cowell at the Kansas City auditions for season two of the American version while Cowell was recovering from bronchitis. He joined the other season two judges: L.A. Reid, Demi Lovato and Britney Spears, and was introduced with the line, "When Simon needs an opinion from someone he trusts, I'm the man he calls". His episode broke ratings records for the series. Walsh returned for the tenth series and was joined by Barlow, Scherzinger and fellow original judge Osbourne, who replaced Tulisa. Due to being the only judge to remain for the whole ten years, he was awarded by being assigned the Boys category, instead of the Overs and Groups he was assigned to every year, since mentoring Shayne Ward in 2005. His category consisted of Nicholas McDonald, Luke Friend, and Sam Callahan. McDonald finished in second place to Sam Bailey, mentored by Osbourne. Despite not winning, this was still by far Walsh's most successful year as