British-born big band singer Beryl Davis, who made her U.S. debut on Bob Hope’s radio show and later performed with Frank Sinatra and Benny Goodman, died Friday in Los Angeles of complications from Alzheimer’s disease. She was 87.Davis was daughter of British band leader Harry Davis. During WWII, she sang with Stephane Grappelli and pianist George Shearing in a group that performed in London clubs throughout the Blitz. She sang with Glenn Miller’s Army Air Force Band near the end of the war. After Hope’s radio show, Beryl Davis appeared with Sinatra on the “Your Hit Parade” radio show. In the 1950s, she formed a vocal quartet with Jane Russell, Connie Haines and Della Russell.