American Idol that season, but left after just one season. On January 11, 2010, Simon Cowell left the show to pursue introducing the American version of his show "The X Factor" for 2011. Jennifer Lopez and Steven Tyler joined the judging panel in the tenth season, but both left after two seasons. They were replaced by three new judges, Mariah Carey, Nicki Minaj and Keith Urban, who joined Randy Jackson in the twelfth season. However both Carey and Minaj left after one season, and Randy Jackson departed the show after twelve seasons as a judge but would return as a mentor. Urban
Peter Jackson (judge) had been widely criticised in the media for being able to make crucial rulings without public scrutiny. In January 2016 Judge Jackson issued a ruling which appeared at variance with the findings of police investigation which had resulted in no prosecution. Although there had been no prosecution the Judge found that the father had on the balance of probabilities abused the baby before her death. Judge Jackson also criticised the Police and Social Services. In September 2016 Jackson was praised for rephrasing an entire judgement into a 17-page document using simple phrases and emojis in hopes that the children involved