Dallerup is best known to a wide audience for her appearances on the BBC's dance competition, "Strictly Come Dancing", on which she appeared as a professional dancer in the first six series from 2004 to 2008. She won the show for the first time in 2008, partnering Holby City actor Tom Chambers. She subsequently revealed she would not be returning to the show for the 2009 series. She did however go on tour with "Strictly Come Dancing" in early 2009 with 2008 partner Tom Chambers.