Kerli Ross Muntz his mother Sarah Muntz is the singer of the hit EDM pop song My Period Panties and his father is Nelson's Cousin Dousein Barbecuesauce Muntz in 30 years on the future, before Sarah got impregnated by Nelson Muntz and gave birth to Janet, who is his Half Sister. Due to a birth defect of constant inbreeding, he was born without a chin and is missing a considerable portion of his face, as seen in the photo.