Craniopagus twins Craniopagus twins Craniopagus twins are conjoined twins that are fused at the cranium. This condition occurs in about 10–20 babies in every million births in the United States. Among this small group, cephalic conjoining, or craniopagus twinning, represents the rarest of congenital abnormalities, accounting for 2–6% of all conjoined twins. Additionally, conjoined twins are genetically identical and always share the same sex. The union in craniopagus twins may occur on any portion of the cranium, but does not include either the face or the foramen magnum. The thorax and abdomen are separate and each twin has its own umbilicus and
Kalin Twins thus appeared as the Kalin Brothers. They disappeared again as a performing act, until 1989. Then, their one-time support act, Cliff Richard, invited them to play at his Wembley Stadium 'The Event' concerts, as part of a sequence paying homage to the 1950s television pop show, "Oh Boy!" Kalin Twins The Kalin Twins (born February 16, 1934) were a pop music recording and songwriting duo, comprising twin brothers Harold Kalin and Herbert Kalin (died August 24, 2005 and July 21, 2006, respectively). The Kalin Twins, who were known affectionately as "Hal and Herbie", are best known for their 1958 hit