Luka (* 26. June 1979 in Porto Alegre as Luciana Karina Lima ) is a Brazilian pop singer . She became known through the "Elch und weg" campaign by the radio station SWR3 in Germany. Her debut single Tô nem ai was in Brazil in 2003 at number 2 for six weeks and in the top 20 for 29 weeks. In January 2004 she landed a great success in Europe with number 5 on the airplay charts (Portugal).