Jennifer Lopez: My Twins Max and Emme "Look Like Coconuts"

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The world knows them as Max and Emme, but to mom Jennifer Lopez, they're more affectionately called her "coconuts."

Lopez, 42, explained how her 3-year-old twins with ex Marc Anthony got their fruity nicknames during an appearance on The Tonight Show With Jay Leno Monday.

"They're my coconuts," she gushed. "That comes from when they were little and in their cribs and started growing hair. It looked just like a coconut to me. They both look like coconuts!"

"I have this beautiful necklace which was given to me at Christmas," Lopez added. "There are two coconuts and their initials on it."

As they work out the details of their divorce, Lopez and Anthony, 43, will continue to share custody of the twins. Max and Emme will turn 4 on February 22.