Patty Andrews, the last surviving member of hit wartime singing trio the Andrews Sisters, has died aged 94.

Patty passed away of natural causes in her Los Angeles home on Wednesday.

She was the lead singer of the family musical trio that shot to international fame during World War II with hits including 'Boogie Woogie Bugle Boy of Company B' and 'Rum and Coca Cola'.

Patty was the youngest sister and the clown of the group, and a particular favourite of British and US serviceman who enjoyed her enthusiastic jitterbugging.

The Andrews Sisters — Patty and sisters LaVerne and Maxene — recorded more than 400 songs and sold over 80 million records worldwide.

Patty was just seven years old when the Andrews Sisters formed, and just 12 when they went on the road.

By the late 1930s the girls had produced several hit records and by 1940 they were a household name.

They toured extensively during the war, performing for Allied servicemen in army bases, munitions factories, hospitals and battlefields in America, Africa and Italy.

The group broke up in 1951, when Patty joined another singing group, but reunited in 1956.

Eldest sister LaVerne died of cancer in 1967 and Maxene and Patty performed for a duo for a while but soon became estranged. The reasons behind their feud are not known.

Maxene died of a heart attack in 1995.

Patty is survived by her foster daughter Pam.