Christina Aguilera will definitely give Max a younger sibling, possible two. She just doesn't know about the timing of it all.

"Absolutely, we'll definitely have more kids," she told PEOPLE at the Africa Rising concert in London Tuesday. How many? "I don't know. We'll play it by ear."

The singer is so happy with the way things are going for her. She has a very successful career, a beautiful family and she really enjoys her job.

"I'm in love with my life," she says, although parting with her son to perform can be a drag. "But Mama has to work, Mama has to do a job."
She adds, "I think it's important to share what I love – what makes me me – with my son. So. I change diapers and I breastfeed him and I play with him and then I work. I want to show Max everything about me."

I love Aguilera's quote about getting her body back. She said you just have to put a little effort into it. And that is so true. It's basically the answer to that question no matter who you ask. 'How did you lose the weight?'  I made the effort to. 

"You try," she says. "Working out. Trying to eat as healthy as possible. I'm a junk food queen."