judges' houses, the final part of the selection process, was filmed in the summer 2011. the episodes were aired on 4 october 2011 and on 11 october. judges were given their categories at the end of the "superbootcamp". brönner the over 25s, connor the groups, and das bo the 16-24s. assisted brönner in edinburgh, connor was accompanied by jason derulo in berlin, and das bo received help from melanie c in hamburg. at judges' houses each act performed one song for their mentor and his/her guest, before the last performance, they practiced the song with their mentor and his/her guest.