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

Credit: Frank Micelotta/FOX/PictureGroup; inset: INF

Updated: Thursday Mar 31, 2011 | 06:00 AM EDT

3. SHE GIVES GOOD ADVICE

The job is to guide contestants and Lopez does it well, like when she praised Thia Megia for singing an uptempo song but still encouraged her to work harder. "It was great to see you let loose like that," Lopez said. "Always make sure you connect with your lyrics so you can bring even more."