Hollywood legend Doris Day, whose career as a singer and actress stretched over half a century, has died at the age of 97.The singer turned actress famed for her 1956 box office hit 'Que Sera, Sera' (Whatever Will Be, Will Be) had starred in films 'Pillow Talk', 'Calamity Jane' andDay was Hollywood's quintessential 'girl next door,' with a sometimes sophisticated edge. Her co-actors included Rock Hudson, Cary Grant, David Niven, Rex Harrison and James Garner.In a statement, the Doris Day Animal Foundation said she died early Monday at her Carmel Valley home in California.It said she "had been in excellent physical health for her age, until recently contracting a serious case of pneumonia," Fox News reported."She was surrounded by close friends," the statement added.Her velvety voice, wholesome blond looks and ultra-bright smile brought Day a string of hits, first on records and later in Hollywood. With her film dramas, musicals and innocent sex comedies, Day soon became America's ...