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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Demands for the government to deliver a fair deal on transport for the north of England will be made by political and business leaders.
Prince Harry has paid tribute to the Prince of Wales for the care he showed to him and the Duke of Cambridge after Diana's death.
Rain in the north tonight. Mostly dry, mild and humid elsewhere.