The 57-year-old Scot topped the charts with the hunky hitmakers on single RELIGHT MY FIRE in 1993 - and she admits they need her special magic to bring the song to life.
She says, "I'm kind of big-headed - I sort of expected them to ask me.
"GARY BARLOW said it was the third question they were asked when they held their press conference.
"I think the band must have thought, 'We need that old bag Lulu on our tour.'
"I don't really know how they would have done that track without me."