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.
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A report published by the Boundary Commission for England details plans to reduce the number of MPs by scrapping 50 constituencies.
The slump will spark scrutiny, especially as statistics show a rise in racially or religiously motivated offences following the EU vote.
The 53-year-old was killed shortly after leaving her home in Mosta, Prime Minister Joseph Muscat said.