Nino de Angelo (born Domenico Gerhard Gorgoglione on 18th December 1963 in Karlsruhe, Germany) is a German actor and singer of Italian ancestry, being best known for his environmental protest song "Jenseits von Eden" (English: Beyond Eden") that was an interntional #1 hit.
Vicky Leandros (born August 23, 1952), daughter of singer, musician and composer Leandros Papathanasiou (known as Leo Leandros - composer pseudonym Mario Panas) is a Greek singer with a long international career.
Mary Roos (born Rosemarie Schwab on January 9 1949) is a German singer and actress. Schwab was born in Bingen. At the age of nine, she recorded her first song "Ja die Dicken sind ja so gemütlich" as Die kleine Rosemarie. It was not a major commercial success.
There are (at least) 5 female singers and one band using the stage name 'Michelle' -
(1) Michelle (*February 15, 1972 in Villingen-Schwenningen) is the stage name of German singer Tanja Shitawey (née Hewer) who represented Germany in the ESC 2001 with "Wer Liebe lebt" ("To Live for Love").