Singer Susan Boyle admits she had dirty thoughts when meeting Donny Osmond.

She explains, "It was lovely. I looked into his big dark eyes and I thought, 'sex'. He was really nice."

The Scottish spinster became a global phenomenon after appearing on U.K. TV contest "Britain's Got Talent" last year and has since sold more than 8.5 million copies of her debut album, "I Dreamed A Dream."

But despite amassing more than $15 million in her bank account, the 49 year old survives on a $450 weekly allowance handed to her by her management team.