Jennifer Lopez: 10 Reasons She Rocks on American IdolFrom her stylish wardrobe to her sage advice and sincere emotion, here's why we love Judge J.Lo

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6. SHE'S HAVING FUN

She dances in her seat to the music. She jokes with Ryan Seacrest, Steven Tyler and Randy Jackson. Basically, she's enjoying herself – and it shows. "I've been having a ball with it," Lopez told Seacrest on his radio show. "I love working with all you guys and it's just been a lot of fun."