Summer was born Donna Gaines in Boston, US and learned to sing in church before fronting a series of bands and appearing in musicals.
Working as a session singer brought her into contact with producers Giorgio Moroder and Pete Bellotte and together they made her one of the biggest acts of the 1970s.
The extended 16-minute version of Love To Love You Baby was a huge hit in the clubs, but was banned from several radio stations because of her suggestive vocal style.
More top news
Dame Vera tells ITV News she still thinks of the boys 'who I was singing to but never returned home', 70 years after VE Day.
Microsoft, which owns the online voice-chat service, will appeal the EU General Court's ruling, which means 'Skype' is not a trade mark.
46-year-old Edwin Mee abused his power to bully and groom young female cadets before pouncing on them.