Bookies are already paying out on Peter Andre’s Mysterious Girl going to number one.
The re-released single is storming to the top of the charts and looks set to shift 100,000 copies by the end of the week.
Ladbrokes spokesman Warren Lush said: “Our sources tell us that there is no way Mysterious Girl won’t be number one on Sunday, so we have started paying out.
“Peter has his knockers but come Sunday he will be a mighty oak of the music business rather than an acorn.”
Mysterious Girl is outselling its closest rival, Westlife single Obvious, by two to one.
And Ladbrokes have closed the book on Insania making it to number one this year. They initially dismissed it as a 50/1 chance but the odds were cut to just 2/1.
They are also offering odds of 6/1 on Peter Andre and Jordan topping the charts with Against All Odds.
Andre revealed the couple may cover the old Phil Collins hit.