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Although Jennifer Lopez admits having more kids "would be a blessing" she told People magazine she's "got [her] hands full" already with a career firing on all cylinders and 4-year-old twins Max and Emma.  Speaking about her kids to  People, J-Lo said, "Every day … they just bring so much joy and happiness to your life, [and] they just bring you right back down the earth."

As for being a single mom balancing her duties on "American Idol," her show "Q'Viva! The Chosen," and her upcoming film,"What to Expect When You're Expecting," Lopez said, "There's the guilt that comes along with it. You leave and they go, 'Don't go to work, Mommy!"

Lopez, 42, said no matter how busy she gets, she'll always put her kids first. "That's my philosophy," she said. "So as long as that's … working in the right way, then I can dedicate whatever time I need to dedicate to my career … You just do the best you can, and say no when you have to say no."

Of course, Lopez doesn't do it all alone.  "I have a lot of great people in my life who help … at work and at home," she said.  "I have a great family - so all together - we do it. It takes a village."