According to Paddy Power, the four-piece – one of Louis Walsh’s two remaining acts in the competition – are 6-4 to be the next act voted out on Saturday’s show.
Pool cleaner Daniel Evans is next in the betting at 11-4, followed by Scott Bruton at 4-1.
However it looks as if contest favourite Laura White is safe for another week – she’s the outsider to go at 50-1.
Meanwhile model Jodie Kidd and actor Don Warrington are joint favourites to get the boot from this week’s Strictly Come Dancing.
Kidd survived the dance-off in her first week on the show, and was favourite to be eliminated last week – but proved more popular with the public and missed out on the bottom two.
Warrington also survived the first dance-off and sailed through the next round after his tango was a hit with the judges.
Both have odds of 3-1 with Paddy Power, although Olympic swimmer Mark Foster is also in the running at 7-2 – while some bookies, such as Ladbrokes, have him as the favourite to go.
“Foster has been poor in recent weeks,” said Ladbrokes spokesman Nick Weinberg. “It’ll be a surprise if he remains in the competition.”
Saturday’s Strictly will see the men and ladies competing together for the first time this series.