Christina Aguilera gave fans a glimpse of her playful side at the premiere of her new flick ‘The Emoji Movie’ in Los Angeles, California, over the weekend. The blonde pop star – who voices Akiko Glitter, a super cool dancer that lives inside the ‘Just Dance’ app – couldn’t contain her excitement as she bounced up the carpet in her figure-hugging tracksuit but she kept a little bit of mystery by covering her eyes with shades.