06:30Nick GrimshawKaty Perry and the X Factor winner!BBC Radio 1 Duration: 3 hours, 30 minutes Tue 17th Dec 2013, 06:30 on BBC Radio 1 EnglandKaty Perry joins Grimmy, plus the X Factor winner drops in on the show.GenresMusicPop & ChartEntertainmentBrandNick Grimshaw Source: BBC Online