Terri Jackson has spoken out in defence of her 'great' son-in-law, following reports the couple – who married in January this year - have been going through marriage difficulties after allegations Josh cheated on the 34-year-old beauty with several women.

She said: 'My daughter's life is amazing and Josh is a great guy - that story is b******t as far as I'm concerned.'

It had been reported the 'Transformers' star cheated on the songstress while away filming the action movies.

However, Terri is convinced the couple will survive the 'absurd' rumours.

She told website Radar Online: 'It was totally ridiculous and absurd and I'm confident their marriage will weather the media storm. But it's not my place to talk about my daughter's private life, so, if you need specifics then you will have to ask her questions in person.'

Earlier this month, a US stripper claimed she met 37-year-old Josh when he turned up at the club she worked at, they swapped numbers and met up several days later.

Following those allegations, another woman called Serena claimed she knew three women who the actor had been intimate with – one during his marriage and two before their nuptials – while he was working on set of the 'Transformers' movies.

Josh has vehemently denied the rumours.