La Toya Jackson has revealed she secretly became engaged last August after her fiancé, Jeffré Phillips, popped the question.

Fifty-eight-year-old Jackson, who is the fifth child of the Jackson family, was shocked when her business partner got down on one knee while the pair were holidaying in Hawaii.

Speaking to People magazine, she said: ''I had no clue. I couldn't understand why he was so nervous.

''I was in total shock. We're best friends and we've been business partners forever. It was always professional - no one really crossed those boundaries.''

The proposal involved Phillips arranging a romantic dinner of Jackson's favourite foods, including chicken soup, before surprising her with a 17.5-carat diamond ring.