21:35The Voice UKSeries 4Episode 13: Live Quarter Final ResultsBBC One Duration: 35 minutes Sat 21st Mar 2015, 21:35 on BBC One CambridgeshireEmma Willis and Marvin Humes reveal the results of the public vote and announce who has gained a coveted place in the semi-finals.ContributorsPresenter:Emma WillisPresenter:Marvin HumesCoach:Ricky WilsonCoach:Rita OraCoach:Tom JonesCoach:will.i.am undefinedExecutive Producer:Moira RossSeries Editor:Clodagh O'DonoghueSeries Producer:Ed BoothProduction Company:Talpa UK ProductionsProduction Company:Wall to Wall MediaGenresMusicEntertainmentFormatsTalent ShowsBrandThe Voice UKSeriesThe Voice UK: Series 4 Source: BBC Online