Via CBS, where you can read more about her amazing life and accomplishments:
Eydie Gorme, a popular nightclub and television singer as a solo act and as a team with her husband, Steve Lawrence, has died. She was 84.
Gorme, who also had a huge solo hit in 1963 with "Blame it on the Bossa Nova," died Saturday at Sunrise Hospital in Las Vegas following a brief, undisclosed illness, said her publicist, Howard Bragman. [...]
She is survived by Lawrence, her son David and a granddaughter. Her other son with Lawrence, Michael, died of heart failure in 1986 at age 23.