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BERLIN, GERMANY - FEBRUARY 02: German actor and singer Manfred Krug arrives for the presentation of his book 'MK Bilderbuch - Ein Sammelsurium' ('MK Picture Book - A Miscellany') at the Regent Hotel on February 2, 2012 in Berlin, Germany. The book, appearing just before Krug's 75th birthday, recounts his life as a steelworker turned entertainer and activist through photos from his private collection. (Photo by Adam Berry/Getty Images)

BERLIN, GERMANY - FEBRUARY 02:  German actor and singer Manfred Krug arrives for the presentation of his book 'MK Bilderbuch - Ein Sammelsurium' ('MK Picture Book - A Miscellany') at the Regent Hotel on February 2, 2012 in Berlin, Germany. The book, appearing just before Krug's 75th birthday, recounts his life as a steelworker turned entertainer and activist through photos from his private collection.  (Photo by Adam Berry/Getty Images)

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Charles Brauer (L)+ Manfred Krug Drehen Den Ndr (Photo by Franziska Krug/Getty Images)

Charles Brauer (L)+ Manfred Krug Drehen Den Ndr (Photo by Franziska Krug/Getty Images)

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"Manfred Krug als Sänger am 01.06.1979 in Bremen, Deutschland. (Photo by Peter Bischoff/Getty Images)"

"Manfred Krug als Sänger am 01.06.1979 in Bremen, Deutschland. (Photo by Peter Bischoff/Getty Images)"

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"Franz Buchrieser, Manfred Krug, ARD-Trucker-Serie ""Auf Achse"" (Folge 36) am 15.12.1986 in Chile. (Photo by Peter Bischoff/Getty Images)"

"Franz Buchrieser, Manfred Krug, ARD-Trucker-Serie ""Auf Achse"" (Folge 36) am 15.12.1986 in Chile. (Photo by Peter Bischoff/Getty Images)"

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"Samson, Manfred Krug, Ute Willing, ARD-Kinderserie ""Sesamstraße"" am 02.04.1986 in Hamburg, Deutschland. (Photo by Peter Bischoff/Getty Images)"

"Samson, Manfred Krug, Ute Willing, ARD-Kinderserie ""Sesamstraße"" am 02.04.1986 in Hamburg, Deutschland. (Photo by Peter Bischoff/Getty Images)"