While virtually unknown in the U.S., pop singer Jennifer Rush achieved superstar status as an expatriate in Europe, selling millions of records and releasing a string of hit singles notable for their booming, dance-rock arrangements and Rush's powerful voice. Born Heidi Stern in New York City, Rush's father was an opera singer and her mother was a pianist. At the age of nine, she moved to Germany with her family, returning in her teens to the States. In 1982, she returned to Germany with her father to pursue a singing career, signing a deal with CBS/Columbia. Changing her name...