In 1983, the band released its first album "Nena", which contained the singles "99 Luftballons" and "Leuchtturm". "99 Luftballons" became a number one hit in West Germany and the Netherlands in 1983 and went on to major international chart success the following year, an English version hitting in the UK and the original German version hitting in the US, behind Van Halen's "Jump". In 1984, Casey Kasem's radio show "American Top 40" introduced a "mixed" version of the song, "splicing" the German and English versions together. It was also a huge hit in many other countries, it is one of the best-known German rock songs in many parts of the world.