Jennifer Lopez on Clay Aiken's 'American Idol' Dig: 'He's Crazy!'

The 46-year-old also reveals her 'kick ass' mantra for 2016.

Jennifer Lopez has no time for critics!

The stunning 46-year-old gracefully handled Clay Aiken's highly publicized criticism of the American Idol premiere, when he tweeted: "I've watched root canals more entertaining than these judges."

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"Aw, that's too bad. He's on it this year," Lopez told ET's Nancy O'Dell on Sunday's Golden Globes red carpet, responding to Aiken's remark. "Oh, he's crazy!"

But leave it to J.Lo to take the high road, adding: "Well, everybody's entitled to their own opinion."

To be frank, Lopez is simply too busy to worry about haters! Between Idol's farewell season, her leading role on NBC's cop drama Shades of Blue, and her Las Vegas residency -- JENuary is shaping up to be a huge month for the superstar.

"I did not plan it like this," she confessed. "It's just a crazy month, but I'm happy."

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Hitting the red carpet in a yellow Giambattista Valli gown, Lopez showed off her stunning figure and opened up about how her insane schedule helps keep her in shape.

"I think it helps me maintain my figure," she said. "It's like, 'Wake up, kick ass, repeat. Wake up, kick ass, repeat.'"

Now that's a mantra worth repeating! Now, find out why 2016 is going to be the year of Jennifer Lopez.