International superstar Jennifer Lopez gets a "rush of panic" every time she has to explain her marriage split to her young children.  

The 'On The Floor' singer and Marc Anthony separated in July 2011 following a seven year marriage.

Lopez admits the hardest thing about the high-profile split has been explaining it to their four-year-old twins Max and Emme.

Speaking to US TV host Katie Couric, Lopez explained: "I actually just wrote a song about it and just recorded it funnily enough, because I wanted to explain to them without out explaining it to them. It is a beautiful song. But there something inside of me that was struggling with that part of things.

She added: "I feel like God gives me the words every time because every time they do it I get a rush of panic through my body and I'm like ''Oh my god, what do I say?' Again it is learning process, like with Marc, and I said maybe we should do some things together."

Anthony filed for divorce in April of last year, and Lopez has since found love with backing dancer Casper Smart .

The stunning singer was on the talk show to promote her new film 'Parker' in which she plays a newly divorced woman, and says shooting the movie was a cathartic process.

She explained: "So she's at the worst point of her life and at that moment when I was doing the movie, I felt the same way. It was the worst time of my life going through the divorce with the kids, so it was kind of a blessing - as these can be sometimes - to be able to use all those emotions and all those feelings and put them somewhere."