Mandy may have glowed at the Kids' Choice Awards, but apparently she wasn't feeling quite so sunny yesterday in LA. Not only was she dressed almost entirely in black but she was also sporting a knee-high boot on her right leg. Hopefully, Mandy's mystery injury is all healed by the time she's scheduled to perform at one lucky high school's graduation ceremony this year. Students from 10 different cities will have the chance to submit videos explaining why their school is the most "Extraordinary" (her new album title, too); the winner will supposedly be chosen by Mandy herself. Even though graduating seniors aren't always the most attentive bunch, we're sure the lucky class will be psyched.