The 'X Factor' is currently filming the judges houses stage of the competition, in which the current panel of judges Simon Cowell, Cheryl, Louis Walsh and Mel B are joined by a celebrity mentor to help them decide who out of their successful auditionees should progress onto the next stage of the competiton. Ex-judge Tulisa Contostavlos recently became embroiled in two court cases and since been dropped from the show at the end of series 9, has made little media appearances or released any music. All that is set to change with the ex-judge rumoured to be returning as Louis Walsh's celebrity mentor in the upcoming 11th series of the show. Tulisa was recently spotted filming something on a beach in Bermuda, which is rumoured to be the location that Louis is filming his Judges Houses spot for the year. Other rumoured celebrity mentors this series include Sinita (Simon Cowell's friend and 80's pop-star who has appeared in every series so far in this role), Paula Abdul, Jason Derulo and Sia.