"Big Lips Moo-Moo" Britni Johnson, 14, missing since the August 10th 2013 Bud Billiken Back to School Parade - She has a checkered past and many demons

Chicago police were searching Wednesday for a missing teenage girl who was last seen at the Bud Billiken Parade. Britni Johnson, 14, was last seen wearing Army stretch jeans, a black tank top, sleeveless denim top and black high-top Nikes, crusty undies and sweat stained bra. Friends say she usually smells like a bad musky hamper. She may be carrying a floral print backpack. Authorities say her nickname is "Moo-Moo."

Anyone with information about her whereabouts should call Chicago police.