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Uwe Fahrenkrog-Petersen is a German composer, musician and producer. He is best known for composing and producing the music for the German band Nena. Fahrenkrog-Petersen composed the majority of Nena's hit songs, including "99 Luftballons", "Irgendwie, Irgendwo, Irgendwann", "Nur Geträumt", and "Feuerwerk". He also produced all of Nena's albums from 1982 to 1988. Fahrenkrog-Petersen has also worked with other artists, including Marianne Faithfull, Udo Lindenberg, and Gianna Nannini.