'I'd let him go to town on me': James Corden tells Demi Lovato he'd sleep with Incredible Hulk star Mark Ruffalo... as they team up to play Singing Telegrams

He is a happily married father-of-two.

But that did not stop James Corden telling Demi Lovato he would sleep with Incredible Hulk star Mark Ruffalo on The Late Late Show on Tuesday.

He made the confession as they played a risque game called Cruise, Marry, Shag in a pre-recorded Signing Telegrams segment.

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You won't like him when he's angry: James Corden told Demi Lovato he would sleep with Incredible Hulk star Mark Ruffalo during a Late Late Show segment on Tuesday

You won't like him when he's angry: James Corden told Demi Lovato he would sleep with Incredible Hulk star Mark Ruffalo during a Late Late Show segment on Tuesday

James offered up Tom Cruise, Hugh Jackman and Mark Ruffalo to Demi, but could not resist sharing his own preferences.

After initially saying he would marry Ruffalo he changed his mind, saying: ‘I’m going to marry Jackman and just let Mark Ruffalo go to town on me.’

His outrageous answer certainly tickled Demi, who quipped. ‘You’d let him go all Ruffalo on you.'

Demi never got to complete her own answer before James butted in. 

Driven to distraction: The started to play a risque game of Cruise, Marry, Shag as they drove to one of their Singing Telegram appointments

Driven to distraction: The started to play a risque game of Cruise, Marry, Shag as they drove to one of their Singing Telegram appointments

Tough choice: James initially asked who Demi would choose from Tom Cruise, Hugh Jackman and Mark Ruffalo

Tough choice: James initially asked who Demi would choose from Tom Cruise, Hugh Jackman and Mark Ruffalo

'I'd let him go to town on me': James revealed he has a secret soft spot for Avengers star Ruffalo

'I'd let him go to town on me': James revealed he has a secret soft spot for Avengers star Ruffalo

The singer then asked the host to pick between Rihanna, Beyonce, and Nicki Minaj.

After saying he would marry the Halo singer he said: 'I think I would I would go around the world on a cruise with Nicki Minaj. 

'I just get the feeling she’s been with guys who’ve got more to offer than I have, and I don’t want to be a disappointment.'

It came as the dynamic duo teamed up as a roving Singing Telegram act.

That blows: James decided to offer up his own preferences before Demi even answered

That blows: James decided to offer up his own preferences before Demi even answered

Lovato laughs: She was tickled by happily married James' scandalous answer to his own question

Lovato laughs: She was tickled by happily married James' scandalous answer to his own question

Dressed in matching yellow neckerchiefs and bowler hats, Demi and James stunned three unsuspecting people to sing special songs to help them celebrate something - this time with it being a birthday, a promotion, and raising money for charity.

And they even took it one step further by getting to shave a dentist's head after surprising him while he was in the middle of working on a procedure.

After singing a version of the Village People’s YMCA with new lyrics representing how Dr Engel had raised $6,000 for the YMCA, they then donated the remaining $4,000 needed so that he would shave his head in honor.

To work: James and Demi were taking part in a hilarious game called Singing Telegrams

To work: James and Demi were taking part in a hilarious game called Singing Telegrams

Are you telling the tooth: A dentist could not believe it when they said they wanted to support his charity efforts

Are you telling the tooth: A dentist could not believe it when they said they wanted to support his charity efforts

Close shave: Dr Engel agreed to have his head shaved by the saucy popstrel in return for some hard cash

Close shave: Dr Engel agreed to have his head shaved by the saucy popstrel in return for some hard cash

‘Oh God this is really happening!’ James said as Demi started shaving the dentist’s head with electric hair clippers.

As they left, witty Corden said: ‘We might be the first singing telegram mobile barbers. There’s a business here Lovato, I’m telling you that right now.’

Their first telegram had been to a woman called Sarah who had just been promoted at blow dry specialists Drybar, and the other was for a man called Cory on his 25th birthday.

Usually you pay for a haircut: On this occasion he was given $4,000 for having has barnet taken off

Usually you pay for a haircut: On this occasion he was given $4,000 for having has barnet taken off

Surprise, surprise: A hairdresser who just won a promotion was also serenaded

Surprise, surprise: A hairdresser who just won a promotion was also serenaded

Bowler-ing them over: The pair completed their outfits with the favoured headgear of the Orange Order

Bowler-ing them over: The pair completed their outfits with the favoured headgear of the Orange Order

Happy birthday indeed: Another man was greeted with an enthusiastic song on his big day

Happy birthday indeed: Another man was greeted with an enthusiastic song on his big day

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