Nana Gualdi (April 29, 1932, Basel, Switzerland – July 11, 2007) was a German singer and actress. Gualdi, born as Adriana Klein, had a hit with the German version of the song, "Everybody Loves a Lover", which was popularized in the United States by Doris Day. She appeared in several films including Schlagerrevue 1962.During the 1980s, Ms. Gualdi enjoyed success as a stage actress in Hamburg and Stuttgart, Germany. Nana Gualdi died at age 75 in 2007 of undisclosed causes.