Lopez and her boyfriend Casper Smart outside their New York hotel on Monday

Most separated spouses was baulk at the idea of having to continue working together.
But for Jennifer Lopez and her soon-to-be ex-husband Marc Anthony, they had already signed a contract to film a new talent show together before splitting last July.
And while J.Lo insisted she was having 'fun' working with her ex on Q'Viva! The Chosen, she also admitted there could be difficult moments.

Communication issues: Jennifer Lopez admits she sometimes clashes with estranged husband Marc Anthony on their reality show during an interview on the Late Show With David Letterman

Appearing on The Late Show With David Letterman last night, the mother-of-two revealed she sometimes had 'communication' issues with Anthony - a similar problem which arose during their seven year marriage.

Asked by Letterman what it was like working with Anthony, Lopez replied: 'Ya no, its fun because we know each other so well, but it has its moments.

Beautiful in beige: Lopez wrapped up warm in a beige Alberta Ferretti coat and matching heels as she arrived at the Ed Sullivan Theatre

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'The same things that we kinda (mimes a wrestling movement with her hands)… didn’t really work... sometimes come up.'
Letterman then pressed her for further details: 'I want to know if they're the same things for you that they would be for anybody?'
She elaborated: 'Communication... you know just like you're talking and you don't agree on something and then you're like, "Oh be quiet!" and things like that... you’ll see it on the show a little bit.'
When Letterman tried to clarify which ex would tell each other to 'be quiet', she quickly said no when asked if Anthony had told her to be silent.

Getting on well: Lopez and ex-husband Marc Anthony in a scene from Q'Viva! The Chosen

New love: Lopez and her boyfriend Casper Smart outside their New York hotel on Monday

The series premiere of Lopez and Anthony's talent show Q'Viva scored 2.2million viewers on Saturday night on Univison - a U.S. Spanish language channel.
Since announcing their separation in July after seven years and two children Max and Emme, both Anthony and Lopez haven't wasted any time in moving on.
The American Idol judge has been dating toyboy dancer Caspar Smart since November, while Anthony is in a relationship with Venezuelan model Shannon De Lima.

A clothes horse: In a quick outfit change yesterday, J-Lo donned a grey coat and silver shoes

Colourful: Lopez and Smart outside their hotel this morning

In high demand: The pair wave from their waiting car to onlookers

J-Lo was spotted holding hands with her toyboy outside their New York hotel yesterday.
And the pair left again later, sporting new ensembles.
J-Lo has been like the poster girl for fashionable coats, sporting a beige number with fur and a sleek grey coat yesterday, followed by a pink one with a grey collar today.

In the pink: The star's bright shoes stood out in the dark hallway