Confident Sir Rod Stewart has challenged Graeme Souness to put his money where his mouth is as the Celtic diehard threw down a £10k title bet to the Rangers hero.
The crooner took issue with the the pundit after he questioned the 'b*******' of the Celtic squad as they face up to the challenge of Philippe Clement's side in their hunt for their 12th Scottish Premiership crown out of the past 13 seasons.
And despite calling out Souness on air last week, the 'Maggie May' singer has now doubled down on his criticism of the Ibrox icon - challenging him to a bumper five-figure charity bet.
Speaking to Jim White on talkSPORT, he conceded his disappointment that Brendan Rodgers' men were not able to take advantage of Rangers slip up against Motherwell by seeing off Hearts - which would have seen the Hoops move back to the summit.