Lou had already proved her talents at the 2001 Eurovision national finals by coming in third with a mid-tempo rock number before millions of TV viewers. Shortly before Christmas 2002, composer Ralph Siegel asked her if she would be interested in competing in the national finals again with a song he had written with lyricist Bernd Meinunger. After hearing “Let’s Get Happy”, Lou was totally enthusiastic: "This is just my kind of song - and besides, it’s my life’s motto...!" Her March 7 win in the 2003 national finals allowed her to realize her dream to represent Germany at the international level. In the Eurovision Song Contest 2003 she earned an 11th place.