Halla Vilhjálmsdóttir is an Icelandic television, film actress, and singer.She worked for ITV and the BBC. In 2002, Halla earned a role in the Icelandic drama film Gemsar, and starred in her first lead role in the 2006 comedy film Áramótaskaup. One year later, she portrayed Beta in Icelandic fantasy comedy film Astrópía. In 2009 she earned her first international role, playing a prisoner in the British mystery thriller film Ghost Machine under the pseudonym Hatla Williams. Halla hosted the 2006 Icelandic version of The X Factor. In 2008, she played one of the lead roles in the Icelandic Crime television series Mannaveiðar. She has played various roles in TV comedies and sitcoms. Now about her stage career, she played the lead role in the Threepenny Opera at the Icelandic National Theatre, and the lead role of Arial in Footloose, among others.Halla is the female lead singer of the Icelandic Pop band Villimadur, this Soprano singer performed the song "Roses" in the fourth Semi-Final of the Iceland preliminaries for the Eurovision Song Contest 2009.